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BOSTON MARATHON 2026

Xiaotong Zhou

Bib: 24292•F

MA

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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
Age Group (F55-59)
#0 / 951
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
27:43
3.11 mi
Rank: #22271
Start → 5K
27:43 | 8:56/mi
10K
54:59
6.21 mi
Rank: #22053 (+218)
5K → 10K
27:16 | 8:47/mi
15K
1:22:08
9.32 mi
Rank: #21834 (+219)
10K → 15K
27:09 | 8:45/mi
20K
1:49:46
12.43 mi
Rank: #21697 (+137)
15K → 20K
27:38 | 8:54/mi
HALF
1:55:47
13.11 mi
Rank: #21703 (-6)
20K → HALF
6:01 | 8:50/mi
25K
2:18:34
15.53 mi
Rank: #21888 (-185)
HALF → 25K
22:47 | 9:24/mi
30K
2:48:59
18.64 mi
Rank: #22040 (-152)
25K → 30K
30:25 | 9:48/mi
20M
3:04:05
20.00 mi
Rank: #22426 (-386)
30K → 20M
15:06 | 11:08/mi
21M
3:14:43
21.00 mi
Rank: #22442 (-16)
20M → 21M
10:38 | 10:38/mi
35K
3:21:53
21.75 mi
Rank: #22408 (+34)
21M → 35K
7:10 | 9:35/mi
23M
3:34:38
23.00 mi
Rank: #22416 (-8)
35K → 23M
12:45 | 10:12/mi
24M
3:44:10
24.00 mi
Rank: #22379
23M → 24M
9:32 | 9:32/mi
40K
3:52:51
24.85 mi
Rank: #22364
24M → 40K
8:41 | 10:10/mi
25.2M
3:56:32
25.20 mi
Rank: #22348
40K → 25.2M
3:41 | 10:41/mi
FINISH
4:06:15
26.22 mi
Rank: #22353
25.2M → FINISH
9:43 | 9:33/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:55:47
Pace8:50 /mi
2nd Half
Distance13.11 mi
Time2:10:28
Pace9:58 /mi
📊Positive Split: 12.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:34:0127:438:5627:43
8:56
-
10K
6.21 mi12:01:1754:598:5127:16
8:47
-0:09
15K
9.32 mi12:28:261:22:088:4927:09
8:45
-0:02
20K
12.43 mi12:56:041:49:468:5027:38
8:54
+0:09
HALF
13.11 mi13:02:051:55:478:506:01
8:50
-0:04
25K
15.53 mi13:24:522:18:348:5622:47
9:24
+0:34
30K
18.64 mi13:55:172:48:599:0430:25
9:48
+0:24
20M
20.00 mi14:10:233:04:059:1315:06
11:08
+1:20
21M
21.00 mi14:21:013:14:439:1710:38
10:38
-0:30
35K
21.75 mi14:28:113:21:539:177:10
9:35
-1:03
23M
23.00 mi14:40:563:34:389:2012:45
10:12
+0:37
24M
24.00 mi14:50:283:44:109:219:32
9:32
-0:40
40K
24.85 mi14:59:093:52:519:238:41
10:10
+0:38
25.2M
25.20 mi15:02:503:56:329:243:41
10:41
+0:31
FINISH
26.22 mi15:12:334:06:159:249:43
9:33
-1:08

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

8:45 /mi

Average Pace

9:24 /mi

Slowest Pace

11:08 /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

1:55:47

47% of race

Time at Steady Pace

1:19:37

32% of race

Time at Slower Pace

50:51

21% of race

Average Pace: 9:24 /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 mi11:34:0127:438:5627:43
8:56
#22271
10K
6.21 mi12:01:1754:598:5127:16
8:47
#22053
15K
9.32 mi12:28:261:22:088:4927:09
8:45
#21834
20K
12.43 mi12:56:041:49:468:5027:38
8:54
#21697
HALF
13.11 mi13:02:051:55:478:506:01
8:50
#21703
25K
15.53 mi13:24:522:18:348:5622:47
9:24
#21888
30K
18.64 mi13:55:172:48:599:0430:25
9:48
#22040
20M
20.00 mi14:10:233:04:059:1315:06
11:08
#22426
21M
21.00 mi14:21:013:14:439:1710:38
10:38
#22442
35K
21.75 mi14:28:113:21:539:177:10
9:35
#22408
23M
23.00 mi14:40:563:34:389:2012:45
10:12
#22416
24M
24.00 mi14:50:283:44:109:219:32
9:32
#22379
40K
24.85 mi14:59:093:52:519:238:41
10:10
#22364
25.2M
25.20 mi15:02:503:56:329:243:41
10:41
#22348
FINISH
26.22 mi15:12:334:06:159:249:43
9:33
#22353
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 mi222718818881821428(Top 74%)8352(Top 66%)8352(Top 878%)
10K6.21 mi3.10 mi22053+2188699+1198699+11921810(Top 75%)8553(Top 68%)8553(Top 899%)
15K9.32 mi3.11 mi21834+2198581+1188581+11821428(Top 74%)8352(Top 66%)8352(Top 878%)
20K12.43 mi3.11 mi21697+1378513+688513+6821454(Top 74%)8386(Top 67%)8386(Top 882%)
HALF13.11 mi0.68 mi21703-68511+28511+221982(Top 76%)8638(Top 69%)8638(Top 908%)
25K15.53 mi2.42 mi21888-1858604-938604-9322706(Top 78%)9038(Top 72%)9038(Top 950%)
30K18.64 mi3.11 mi22040-1528705-1018705-10122546(Top 78%)9051(Top 72%)9051(Top 952%)
20M20.00 mi1.36 mi22426-3868916-2118916-21125127(Top 87%)10506(Top 84%)10506(Top 1105%)
21M21.00 mi1.00 mi22442-168938-228938-2222273(Top 77%)9033(Top 72%)9033(Top 950%)
35K21.75 mi0.75 mi22408+348930+88930+822021(Top 76%)8959(Top 71%)8959(Top 942%)
23M23.00 mi1.25 mi22416-88955-258955-2522637(Top 78%)9328(Top 74%)9328(Top 981%)
24M24.00 mi1.00 mi22379+378947+88947+821472(Top 74%)8785(Top 70%)8785(Top 924%)
40K24.85 mi0.85 mi22364+158960-138960-1322360(Top 77%)9281(Top 74%)9281(Top 976%)
25.2M25.20 mi0.35 mi22348+168958+28958+221627(Top 75%)8887(Top 71%)8887(Top 934%)
FINISH26.22 mi1.02 mi22353-58978-208978-2022476(Top 77%)9326(Top 74%)9326(Top 981%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21
+97ft-345ft

Overall

21428

Females

8352

F55-59

8352

5K→10K

3.1 - 6.2 mi

Top 75%
×5
+79ft-138ft

Overall

21810

Females

8553

F55-59

8553

10K→15K

6.2 - 9.3 mi

Top 74%
×3
+67ft-78ft

Overall

21428

Females

8352

F55-59

8352

15K→20K

9.3 - 12.4 mi

Top 74%
×5
+106ft-86ft

Overall

21454

Females

8386

F55-59

8386

20K→HALF

12.4 - 13.1 mi

Top 76%
×2
+19ft-37ft

Overall

21982

Females

8638

F55-59

8638

HALF→25K

13.1 - 15.5 mi

Top 78%
×4
+66ft-88ft

Overall

22706

Females

9038

F55-59

9038

25K→30K

15.5 - 18.6 mi

Top 78%
×9
+181ft-148ft

Overall

22546

Females

9051

F55-59

9051

30K→20M

18.6 - 20.0 mi

Top 87%
×5
+64ft-50ft

Overall

25127

Females

10506

F55-59

10506

20M→21M

20.0 - 21.0 mi

Top 77%
×8
+106ft-24ft

Overall

22273

Females

9033

F55-59

9033

21M→35K

21.0 - 21.8 mi

Top 76%
×7
+17ft-86ft

Overall

22021

Females

8959

F55-59

8959

35K→23M

21.8 - 23.0 mi

Top 78%
×5
+23ft-63ft

Overall

22637

Females

9328

F55-59

9328

23M→24M

23.0 - 24.0 mi

Top 74%
×6
+12ft-82ft

Overall

21472

Females

8785

F55-59

8785

24M→40K

24.0 - 24.9 mi

Top 77%
×1
+6ft-20ft

Overall

22360

Females

9281

F55-59

9281

40K→25.2M

24.9 - 25.2 mi

Top 75%
×1
+13ft-16ft

Overall

21627

Females

8887

F55-59

8887

25.2M→FINISH

25.2 - 26.2 mi

Top 77%
×2
+22ft-21ft

Overall

22476

Females

9326

F55-59

9326

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

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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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing