Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Zhonglan Shen

Bib: 19806FAge: N/A

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 48%
Gender (Female)
#0 / 12578
Top 35%
Masters (Masters Women)
#0 / 6862
Top 19%
Age Group (F55-59)
#0 / 951
Top 5%
Race Day Weather
51°/41°F
overcast clouds
Personalized for Zhonglan

Your Race Performance Report is ready

See how your race unfolded, where your performance changed, and what to focus on next.

Personalized by MyRace AI
Preview insight
Your pace by distance
Fastest segment · 7:33/mi at mile 21.7

Your report includes

  • Race Overview
  • Pacing & Splits
  • Performance Analysis
  • Segment Analysis
  • Passing Analysis
  • Improvement Opportunities
One-time purchase · Instant access · Downloadable PDF · Shareable report

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
23:43
3.11 mi
Rank: #13971
Start5K
23:43 | 7:39/mi
10K
48:21
6.21 mi
Rank: #15318 (-1347)
5K10K
24:38 | 7:56/mi
15K
1:12:41
9.32 mi
Rank: #15417 (-99)
10K15K
24:20 | 7:50/mi
20K
1:37:13
12.43 mi
Rank: #15360 (+57)
15K20K
24:32 | 7:54/mi
HALF
1:42:29
13.11 mi
Rank: #15325 (+35)
20KHALF
5:16 | 7:44/mi
25K
2:01:35
15.53 mi
Rank: #15148 (+177)
HALF25K
19:06 | 7:53/mi
30K
2:26:24
18.64 mi
Rank: #14796 (+352)
25K30K
24:49 | 8:00/mi
20M
2:37:19
20.00 mi
Rank: #14636 (+160)
30K20M
10:55 | 8:03/mi
21M
2:45:39
21.00 mi
Rank: #14442 (+194)
20M21M
8:20 | 8:20/mi
35K
2:51:18
21.75 mi
Rank: #14304 (+138)
21M35K
5:39 | 7:34/mi
23M
3:01:12
23.00 mi
Rank: #14138 (+166)
35K23M
9:54 | 7:55/mi
24M
3:09:09
24.00 mi
Rank: #14102 (+36)
23M24M
7:57 | 7:57/mi
40K
3:16:04
24.85 mi
Rank: #14056 (+46)
24M40K
6:55 | 8:06/mi
25.2M
3:19:05
25.20 mi
Rank: #14048 (+8)
40K25.2M
3:01 | 8:45/mi
FINISH
3:27:00
26.22 mi
Rank: #14023 (+25)
25.2MFINISH
7:55 | 7:47/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:42:29
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time1:44:31
Pace7:59 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:08:1823:437:3923:43
7:39
-
10K
6.21 mi11:32:5648:217:4724:38
7:56
+0:17
15K
9.32 mi11:57:161:12:417:4824:20
7:50
-0:06
20K
12.43 mi12:21:481:37:137:5024:32
7:54
+0:04
HALF
13.11 mi12:27:041:42:297:505:16
7:44
-0:10
25K
15.53 mi12:46:102:01:357:5019:06
7:53
+0:09
30K
18.64 mi13:10:592:26:247:5224:49
8:00
+0:07
20M
20.00 mi13:21:542:37:197:5210:55
8:03
+0:03
21M
21.00 mi13:30:142:45:397:548:20
8:20
+0:17
35K
21.75 mi13:35:532:51:187:535:39
7:34
-0:46
23M
23.00 mi13:45:473:01:127:539:54
7:55
+0:21
24M
24.00 mi13:53:443:09:097:537:57
7:57
+0:02
40K
24.85 mi14:00:393:16:047:546:55
8:06
+0:09
25.2M
25.20 mi14:03:403:19:057:553:01
8:45
+0:39
FINISH
26.22 mi14:11:353:27:007:557:55
7:47
-0:58

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

7:34 /mi

Average Pace

7:54 /mi

Slowest Pace

8:45 /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

3:15:39

95% of race

Time at Steady Pace

11:21

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:54 /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 mi11:08:1823:437:3923:43
7:39
#13971
10K
6.21 mi11:32:5648:217:4724:38
7:56
#15318
15K
9.32 mi11:57:161:12:417:4824:20
7:50
#15417
20K
12.43 mi12:21:481:37:137:5024:32
7:54
#15360
HALF
13.11 mi12:27:041:42:297:505:16
7:44
#15325
25K
15.53 mi12:46:102:01:357:5019:06
7:53
#15148
30K
18.64 mi13:10:592:26:247:5224:49
8:00
#14796
20M
20.00 mi13:21:542:37:197:5210:55
8:03
#14636
21M
21.00 mi13:30:142:45:397:548:20
8:20
#14442
35K
21.75 mi13:35:532:51:187:535:39
7:34
#14304
23M
23.00 mi13:45:473:01:127:539:54
7:55
#14138
24M
24.00 mi13:53:443:09:097:537:57
7:57
#14102
40K
24.85 mi14:00:393:16:047:546:55
8:06
#14056
25.2M
25.20 mi14:03:403:19:057:553:01
8:45
#14048
FINISH
26.22 mi14:11:353:27:007:557:55
7:47
#14023
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi139714064406415627(Top 54%)5125(Top 41%)5125(Top 539%)
10K6.21 mi3.10 mi15318-13474911-8474911-84716703(Top 58%)5733(Top 46%)5733(Top 603%)
15K9.32 mi3.11 mi15417-994990-794990-7915627(Top 54%)5125(Top 41%)5125(Top 539%)
20K12.43 mi3.11 mi15360+574964+264964+2615284(Top 53%)4963(Top 39%)4963(Top 522%)
HALF13.11 mi0.68 mi15325+354942+224942+2214990(Top 52%)4711(Top 37%)4711(Top 495%)
25K15.53 mi2.42 mi15148+1774847+954847+9514431(Top 50%)4532(Top 36%)4532(Top 477%)
30K18.64 mi3.11 mi14796+3524670+1774670+17713420(Top 46%)4080(Top 32%)4080(Top 429%)
20M20.00 mi1.36 mi14636+1604601+694601+6913122(Top 45%)4015(Top 32%)4015(Top 422%)
21M21.00 mi1.00 mi14442+1944505+964505+9612125(Top 42%)3604(Top 29%)3604(Top 379%)
35K21.75 mi0.75 mi14304+1384442+634442+6311314(Top 39%)3180(Top 25%)3180(Top 334%)
23M23.00 mi1.25 mi14138+1664381+614381+6111868(Top 41%)3538(Top 28%)3538(Top 372%)
24M24.00 mi1.00 mi14102+364379+24379+213420(Top 46%)4479(Top 36%)4479(Top 471%)
40K24.85 mi0.85 mi14056+464389-104389-1013109(Top 45%)4387(Top 35%)4387(Top 461%)
25.2M25.20 mi0.35 mi14048+84393-44393-413282(Top 46%)4514(Top 36%)4514(Top 475%)
FINISH26.22 mi1.02 mi14023+254396-34396-313555(Top 47%)4687(Top 37%)4687(Top 493%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21
+97ft-345ft

Overall

15627

Females

5125

F55-59

5125

5K→10K

3.1 - 6.2 mi

Top 58%
×5
+79ft-138ft

Overall

16703

Females

5733

F55-59

5733

10K→15K

6.2 - 9.3 mi

Top 54%
×3
+67ft-78ft

Overall

15627

Females

5125

F55-59

5125

15K→20K

9.3 - 12.4 mi

Top 53%
×5
+106ft-86ft

Overall

15284

Females

4963

F55-59

4963

20K→HALF

12.4 - 13.1 mi

Top 52%
×2
+19ft-37ft

Overall

14990

Females

4711

F55-59

4711

HALF→25K

13.1 - 15.5 mi

Top 50%
×4
+66ft-88ft

Overall

14431

Females

4532

F55-59

4532

25K→30K

15.5 - 18.6 mi

Top 46%
×9
+181ft-148ft

Overall

13420

Females

4080

F55-59

4080

30K→20M

18.6 - 20.0 mi

Top 45%
×5
+64ft-50ft

Overall

13122

Females

4015

F55-59

4015

20M→21M

20.0 - 21.0 mi

Top 42%
×8
+106ft-24ft

Overall

12125

Females

3604

F55-59

3604

21M→35K

21.0 - 21.8 mi

Top 39%
×7
+17ft-86ft

Overall

11314

Females

3180

F55-59

3180

35K→23M

21.8 - 23.0 mi

Top 41%
×5
+23ft-63ft

Overall

11868

Females

3538

F55-59

3538

23M→24M

23.0 - 24.0 mi

Top 46%
×6
+12ft-82ft

Overall

13420

Females

4479

F55-59

4479

24M→40K

24.0 - 24.9 mi

Top 45%
×1
+6ft-20ft

Overall

13109

Females

4387

F55-59

4387

40K→25.2M

24.9 - 25.2 mi

Top 46%
×1
+13ft-16ft

Overall

13282

Females

4514

F55-59

4514

25.2M→FINISH

25.2 - 26.2 mi

Top 47%
×2
+22ft-21ft

Overall

13555

Females

4687

F55-59

4687

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2075*
Passed By
875
Net Change
-52
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13971
5K10K37200-1347#13971#15318
10K15K169200-99#15318#15417
15K20K192135+57#15417#15360
20KHALF5318+35#15360#15325
HALF25K224*47+177#15325#15148
25K30K396*44+352#15148#14796
30K20M17919+160#14796#14636
20M21M215*21+194#14636#14442
21M35K1424+138#14442#14304
35K23M18721+166#14304#14138
23M24M8448+36#14138#14102
24M40K8438+46#14102#14056
40K25.2M3527+8#14056#14048
25.2MFINISH7853+25#14048#14023
TOTALS2075*875-52

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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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Activity Data

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