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BOSTON MARATHON 2026

Zhen Zhang

Bib: 23611•F

WA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Top 49%
Age Group (F50-54)
#0 / 1233
Top 50%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
26:56
3.11 mi
Rank: #21029
Start → 5K
26:56 | 8:41/mi
10K
53:27
6.21 mi
Rank: #20766 (+263)
5K → 10K
26:31 | 8:33/mi
15K
1:19:52
9.32 mi
Rank: #20541 (+225)
10K → 15K
26:25 | 8:31/mi
20K
1:46:23
12.43 mi
Rank: #20242 (+299)
15K → 20K
26:31 | 8:33/mi
HALF
1:52:07
13.11 mi
Rank: #20215 (+27)
20K → HALF
5:44 | 8:25/mi
25K
2:12:52
15.53 mi
Rank: #20018 (+197)
HALF → 25K
20:45 | 8:34/mi
30K
2:40:35
18.64 mi
Rank: #19857 (+161)
25K → 30K
27:43 | 8:56/mi
20M
2:52:42
20.00 mi
Rank: #19759 (+98)
30K → 20M
12:07 | 8:56/mi
21M
3:02:07
21.00 mi
Rank: #19663 (+96)
20M → 21M
9:25 | 9:25/mi
35K
3:08:40
21.75 mi
Rank: #19638 (+25)
21M → 35K
6:33 | 8:46/mi
23M
3:19:39
23.00 mi
Rank: #19491 (+147)
35K → 23M
10:59 | 8:47/mi
24M
3:28:14
24.00 mi
Rank: #19390 (+101)
23M → 24M
8:35 | 8:35/mi
40K
3:35:35
24.85 mi
Rank: #19277 (+113)
24M → 40K
7:21 | 8:36/mi
25.2M
3:38:41
25.20 mi
Rank: #19203 (+74)
40K → 25.2M
3:06 | 9:00/mi
FINISH
3:47:06
26.22 mi
Rank: #19103 (+100)
25.2M → FINISH
8:25 | 8:16/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:52:07
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time1:54:59
Pace8:47 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:5426:568:4126:56
8:41
-
10K
6.21 mi11:56:2553:278:3726:31
8:33
-0:08
15K
9.32 mi12:22:501:19:528:3526:25
8:31
-0:02
20K
12.43 mi12:49:211:46:238:3426:31
8:33
+0:02
HALF
13.11 mi12:55:051:52:078:345:44
8:25
-0:08
25K
15.53 mi13:15:502:12:528:3420:45
8:34
+0:09
30K
18.64 mi13:43:332:40:358:3727:43
8:56
+0:22
20M
20.00 mi13:55:402:52:428:3912:07
8:56
0:00
21M
21.00 mi14:05:053:02:078:419:25
9:25
+0:29
35K
21.75 mi14:11:383:08:408:416:33
8:46
-0:39
23M
23.00 mi14:22:373:19:398:4110:59
8:47
+0:01
24M
24.00 mi14:31:123:28:148:418:35
8:35
-0:12
40K
24.85 mi14:38:333:35:358:417:21
8:36
+0:01
25.2M
25.20 mi14:41:393:38:418:413:06
9:00
+0:24
FINISH
26.22 mi14:50:043:47:068:418:25
8:16
-0:44

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

8:16 /mi

Average Pace

8:40 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

3:37:41

96% of race

Time at Steady Pace

9:25

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:40 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:29:5426:568:4126:56
8:41
#21029
10K
6.21 mi11:56:2553:278:3726:31
8:33
#20766
15K
9.32 mi12:22:501:19:528:3526:25
8:31
#20541
20K
12.43 mi12:49:211:46:238:3426:31
8:33
#20242
HALF
13.11 mi12:55:051:52:078:345:44
8:25
#20215
25K
15.53 mi13:15:502:12:528:3420:45
8:34
#20018
30K
18.64 mi13:43:332:40:358:3727:43
8:56
#19857
20M
20.00 mi13:55:402:52:428:3912:07
8:56
#19759
21M
21.00 mi14:05:053:02:078:419:25
9:25
#19663
35K
21.75 mi14:11:383:08:408:416:33
8:46
#19638
23M
23.00 mi14:22:373:19:398:4110:59
8:47
#19491
24M
24.00 mi14:31:123:28:148:418:35
8:35
#19390
40K
24.85 mi14:38:333:35:358:417:21
8:36
#19277
25.2M
25.20 mi14:41:393:38:418:413:06
9:00
#19203
FINISH
26.22 mi14:50:043:47:068:418:25
8:16
#19103
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi210298184818420178(Top 70%)7681(Top 61%)7681(Top 623%)
10K6.21 mi3.10 mi20766+2638025+1598025+15920533(Top 71%)7877(Top 63%)7877(Top 639%)
15K9.32 mi3.11 mi20541+2257894+1317894+13120178(Top 70%)7681(Top 61%)7681(Top 623%)
20K12.43 mi3.11 mi20242+2997755+1397755+13919512(Top 67%)7371(Top 59%)7371(Top 598%)
HALF13.11 mi0.68 mi20215+277744+117744+1119765(Top 68%)7455(Top 59%)7455(Top 605%)
25K15.53 mi2.42 mi20018+1977644+1007644+10018936(Top 65%)7090(Top 56%)7090(Top 575%)
30K18.64 mi3.11 mi19857+1617579+657579+6519193(Top 66%)7320(Top 58%)7320(Top 594%)
20M20.00 mi1.36 mi19759+987550+297550+2918572(Top 64%)7068(Top 56%)7068(Top 573%)
21M21.00 mi1.00 mi19663+967512+387512+3818153(Top 63%)6871(Top 55%)6871(Top 557%)
35K21.75 mi0.75 mi19638+257507+57507+518916(Top 65%)7383(Top 59%)7383(Top 599%)
23M23.00 mi1.25 mi19491+1477448+597448+5917359(Top 60%)6616(Top 53%)6616(Top 537%)
24M24.00 mi1.00 mi19390+1017411+377411+3717417(Top 60%)6701(Top 53%)6701(Top 543%)
40K24.85 mi0.85 mi19277+1137358+537358+5316314(Top 56%)6158(Top 49%)6158(Top 499%)
25.2M25.20 mi0.35 mi19203+747326+327326+3214803(Top 51%)5372(Top 43%)5372(Top 436%)
FINISH26.22 mi1.02 mi19103+1007290+367290+3616802(Top 58%)6399(Top 51%)6399(Top 519%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21
+97ft-345ft

Overall

20178

Females

7681

F50-54

7681

5K→10K

3.1 - 6.2 mi

Top 71%
×5
+79ft-138ft

Overall

20533

Females

7877

F50-54

7877

10K→15K

6.2 - 9.3 mi

Top 70%
×3
+67ft-78ft

Overall

20178

Females

7681

F50-54

7681

15K→20K

9.3 - 12.4 mi

Top 67%
×5
+106ft-86ft

Overall

19512

Females

7371

F50-54

7371

20K→HALF

12.4 - 13.1 mi

Top 68%
×2
+19ft-37ft

Overall

19765

Females

7455

F50-54

7455

HALF→25K

13.1 - 15.5 mi

Top 65%
×4
+66ft-88ft

Overall

18936

Females

7090

F50-54

7090

25K→30K

15.5 - 18.6 mi

Top 66%
×9
+181ft-148ft

Overall

19193

Females

7320

F50-54

7320

30K→20M

18.6 - 20.0 mi

Top 64%
×5
+64ft-50ft

Overall

18572

Females

7068

F50-54

7068

20M→21M

20.0 - 21.0 mi

Top 63%
×8
+106ft-24ft

Overall

18153

Females

6871

F50-54

6871

21M→35K

21.0 - 21.8 mi

Top 65%
×7
+17ft-86ft

Overall

18916

Females

7383

F50-54

7383

35K→23M

21.8 - 23.0 mi

Top 60%
×5
+23ft-63ft

Overall

17359

Females

6616

F50-54

6616

23M→24M

23.0 - 24.0 mi

Top 60%
×6
+12ft-82ft

Overall

17417

Females

6701

F50-54

6701

24M→40K

24.0 - 24.9 mi

Top 56%
×1
+6ft-20ft

Overall

16314

Females

6158

F50-54

6158

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1
+13ft-16ft

Overall

14803

Females

5372

F50-54

5372

25.2M→FINISH

25.2 - 26.2 mi

Top 58%
×2
+22ft-21ft

Overall

16802

Females

6399

F50-54

6399

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2552
Passed By
626
Net Change
+1926
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21029
5K → 10K440177+263#21029#20766
10K → 15K328103+225#20766#20541
15K → 20K34243+299#20541#20242
20K → HALF4013+27#20242#20215
HALF → 25K22225+197#20215#20018
25K → 30K25190+161#20018#19857
30K → 20M13032+98#19857#19759
20M → 21M13337+96#19759#19663
21M → 35K5732+25#19663#19638
35K → 23M16215+147#19638#19491
23M → 24M12120+101#19491#19390
24M → 40K13118+113#19390#19277
40K → 25.2M806+74#19277#19203
25.2M → FINISH11515+100#19203#19103
TOTALS2552626+1926
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Export & Support

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Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing