Boston Marathon logo
BOSTON MARATHON 2024

Wan Chen Chou

Bib: 22186•F

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F50-54)
#0 / 1187
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:09
Rank: #21372
Start → 5K
29:09 | 9:23/mi
10K· 6.21 mi
59:11
Rank: #21606 (-234)
5K → 10K
30:02 | 9:40/mi
15K· 9.32 mi
1:29:54
Rank: #21617 (-11)
10K → 15K
30:43 | 9:53/mi
20K· 12.43 mi
2:01:55
Rank: #21505 (+112)
15K → 20K
32:01 | 10:18/mi
Half· 13.11 mi
2:08:34
Rank: #21456 (+49)
20K → Half
6:39 | 9:45/mi
25K· 15.53 mi
2:33:34
Rank: #21182 (+274)
Half → 25K
25:00 | 10:19/mi
30K· 18.64 mi
3:07:16
Rank: #20879 (+303)
25K → 30K
33:42 | 10:51/mi
20M
3:21:57
Rank: #20705 (+174)
30K → 20M
14:41 | 10:48/mi
21M
3:33:13
Rank: #20508 (+197)
20M → 21M
11:16 | 11:16/mi
35K· 21.75 mi
3:40:53
Rank: #20411 (+97)
21M → 35K
7:40 | 10:15/mi
23M
3:54:53
Rank: #20316 (+95)
35K → 23M
14:00 | 11:11/mi
24M
4:05:28
Rank: #20212 (+104)
23M → 24M
10:35 | 10:35/mi
40K· 24.85 mi
4:14:40
Rank: #20111 (+101)
24M → 40K
9:12 | 10:46/mi
25.2M
4:18:33
Rank: #20030 (+81)
40K → 25.2M
3:53 | 11:16/mi
Finish· 26.22 mi
4:28:22
Rank: #19929 (+101)
25.2M → Finish
9:49 | 9:38/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:34
Pace9:48 /mi
2nd Half
Distance13.11 mi
Time2:19:48
Pace10:40 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:4329:099:2329:09
9:23
-
10K
6.21 mi11:58:4559:119:3130:02
9:40
+0:17
15K
9.32 mi12:29:281:29:549:3930:43
9:53
+0:13
20K
12.43 mi13:01:292:01:559:4932:01
10:18
+0:25
Half
13.11 mi13:08:082:08:349:486:39
9:45
-0:33
25K
15.53 mi13:33:082:33:349:5325:00
10:19
+0:34
30K
18.64 mi14:06:503:07:1610:0333:42
10:51
+0:32
20M
20.00 mi14:21:313:21:5710:0614:41
10:48
-0:03
21M
21.00 mi14:32:473:33:1310:0911:16
11:16
+0:28
35K
21.75 mi14:40:273:40:5310:097:40
10:15
-1:01
23M
23.00 mi14:54:273:54:5310:1314:00
11:11
+0:56
24M
24.00 mi15:05:024:05:2810:1410:35
10:35
-0:36
40K
24.85 mi15:14:144:14:4010:159:12
10:46
+0:11
25.2M
25.20 mi15:18:074:18:3310:163:53
11:16
+0:30
Finish
26.22 mi15:27:564:28:2210:159:49
9:38
-1:38

Checkpoints & Pacing

📈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

9:23 /mi

Average Pace

10:15 /mi

Slowest Pace

11:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:46:22

40% of race

Time at Steady Pace

1:15:16

28% of race

Time at Slower Pace

1:26:44

32% of race

Average Pace: 10:14 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:28:4329:099:2329:09
9:23
#21372
10K
6.21 mi11:58:4559:119:3130:02
9:40
#21606
15K
9.32 mi12:29:281:29:549:3930:43
9:53
#21617
20K
12.43 mi13:01:292:01:559:4932:01
10:18
#21505
Half
13.11 mi13:08:082:08:349:486:39
9:45
#21456
25K
15.53 mi13:33:082:33:349:5325:00
10:19
#21182
30K
18.64 mi14:06:503:07:1610:0333:42
10:51
#20879
20M
20.00 mi14:21:313:21:5710:0614:41
10:48
#20705
21M
21.00 mi14:32:473:33:1310:0911:16
11:16
#20508
35K
21.75 mi14:40:273:40:5310:097:40
10:15
#20411
23M
23.00 mi14:54:273:54:5310:1314:00
11:11
#20316
24M
24.00 mi15:05:024:05:2810:1410:35
10:35
#20212
40K
24.85 mi15:14:144:14:4010:159:12
10:46
#20111
25.2M
25.20 mi15:18:074:18:3310:163:53
11:16
#20030
Finish
26.22 mi15:27:564:28:2210:159:49
9:38
#19929
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi213728598859821652(Top 85%)8675(Top 79%)8675(Top 731%)
10K6.21 mi3.10 mi21606-2348701-1038701-10321768(Top 85%)8785(Top 80%)8785(Top 740%)
15K9.32 mi3.11 mi21617-118691+108691+1021652(Top 85%)8675(Top 79%)8675(Top 731%)
20K12.43 mi3.11 mi21505+1128639+528639+5221248(Top 83%)8497(Top 78%)8497(Top 716%)
Half13.11 mi0.68 mi21456+498608+318608+3120811(Top 81%)8300(Top 76%)8300(Top 699%)
25K15.53 mi2.42 mi21182+2748471+1378471+13719948(Top 78%)7899(Top 72%)7899(Top 665%)
30K18.64 mi3.11 mi20879+3038366+1058366+10519639(Top 77%)7926(Top 73%)7926(Top 668%)
20M20.00 mi1.36 mi20705+1748305+618305+6118812(Top 74%)7626(Top 70%)7626(Top 642%)
21M21.00 mi1.00 mi20508+1978219+868219+8617070(Top 67%)6896(Top 63%)6896(Top 581%)
35K21.75 mi0.75 mi20411+978183+368183+3617906(Top 70%)7292(Top 67%)7292(Top 614%)
23M23.00 mi1.25 mi20316+958159+248159+2418913(Top 74%)7843(Top 72%)7843(Top 661%)
24M24.00 mi1.00 mi20212+1048127+328127+3218109(Top 71%)7519(Top 69%)7519(Top 633%)
40K24.85 mi0.85 mi20111+1018089+388089+3817472(Top 68%)7261(Top 66%)7261(Top 612%)
25.2M25.20 mi0.35 mi20030+818051+388051+3815410(Top 60%)6248(Top 57%)6248(Top 526%)
Finish26.22 mi1.02 mi19929+1018014+378014+3717118(Top 67%)7070(Top 65%)7070(Top 596%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

21652

Females

8675

F50-54

8675

5K→10K

3.1 - 6.2 mi

Top 85%
×5stories
+79ft-138ft

Overall

21768

Females

8785

F50-54

8785

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

21652

Females

8675

F50-54

8675

15K→20K

9.3 - 12.4 mi

Top 83%
×5stories
+106ft-86ft

Overall

21248

Females

8497

F50-54

8497

20K→Half

12.4 - 13.1 mi

Top 81%
×2stories
+19ft-37ft

Overall

20811

Females

8300

F50-54

8300

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

19948

Females

7899

F50-54

7899

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

19639

Females

7926

F50-54

7926

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

18812

Females

7626

F50-54

7626

20M→21M

20.0 - 21.0 mi

Top 67%
×8stories
+106ft-24ft

Overall

17070

Females

6896

F50-54

6896

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

17906

Females

7292

F50-54

7292

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

18913

Females

7843

F50-54

7843

23M→24M

23.0 - 24.0 mi

Top 71%
×6stories
+12ft-82ft

Overall

18109

Females

7519

F50-54

7519

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

17472

Females

7261

F50-54

7261

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15410

Females

6248

F50-54

6248

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

17118

Females

7070

F50-54

7070

Passing Analysis

Category:
Athletes Passed
2335
Passed By
892
Net Change
+1443
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21372
5K → 10K152386-234#21372#21606
10K → 15K182193-11#21606#21617
15K → 20K245133+112#21617#21505
20K → Half6213+49#21505#21456
Half → 25K30329+274#21456#21182
25K → 30K34744+303#21182#20879
30K → 20M18915+174#20879#20705
20M → 21M2025+197#20705#20508
21M → 35K1014+97#20508#20411
35K → 23M12025+95#20411#20316
23M → 24M12117+104#20316#20212
24M → 40K11817+101#20212#20111
40K → 25.2M832+81#20111#20030
25.2M → Finish1109+101#20030#19929
TOTALS2335892+1443
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

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

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing