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BOSTON MARATHON 2025

Hui-Wan Chen

Bib: 18488•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
31:43
Rank: #26071
Start → 5K
31:43 | 10:13/mi
10K· 6.21 mi
1:03:24
Rank: #25912 (+159)
5K → 10K
31:41 | 10:12/mi
15K· 9.32 mi
1:35:40
Rank: #25849 (+63)
10K → 15K
32:16 | 10:23/mi
20K· 12.43 mi
2:08:54
Rank: #25738 (+111)
15K → 20K
33:14 | 10:42/mi
Half· 13.11 mi
2:16:25
Rank: #25806 (-68)
20K → Half
7:31 | 11:01/mi
25K· 15.53 mi
2:43:46
Rank: #25761 (+45)
Half → 25K
27:21 | 11:17/mi
30K· 18.64 mi
3:20:10
Rank: #25656 (+105)
25K → 30K
36:24 | 11:43/mi
20M
3:35:45
Rank: #25557 (+99)
30K → 20M
15:35 | 11:28/mi
21M
3:49:52
Rank: #25615 (-58)
20M → 21M
14:07 | 14:07/mi
35K· 21.75 mi
3:58:14
Rank: #25591 (+24)
21M → 35K
8:22 | 11:11/mi
23M
4:12:28
Rank: #25529 (+62)
35K → 23M
14:14 | 11:22/mi
24M
4:24:01
Rank: #25517 (+12)
23M → 24M
11:33 | 11:33/mi
40K· 24.85 mi
4:33:51
Rank: #25468 (+49)
24M → 40K
9:50 | 11:30/mi
25.2M
4:38:02
Rank: #25442 (+26)
40K → 25.2M
4:11 | 12:08/mi
Finish· 26.22 mi
4:48:54
Rank: #25419 (+23)
25.2M → Finish
10:52 | 10:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:16:25
Pace10:24 /mi
2nd Half
Distance13.11 mi
Time2:32:29
Pace11:38 /mi
📊Positive Split: 11.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:2731:4310:1331:43
10:13
-
10K
6.21 mi12:23:081:03:2410:1231:41
10:12
-0:01
15K
9.32 mi12:55:241:35:4010:1632:16
10:23
+0:11
20K
12.43 mi13:28:382:08:5410:2233:14
10:42
+0:19
Half
13.11 mi13:36:092:16:2510:247:31
11:01
+0:19
25K
15.53 mi14:03:302:43:4610:3327:21
11:17
+0:16
30K
18.64 mi14:39:543:20:1010:4436:24
11:43
+0:26
20M
20.00 mi14:55:293:35:4510:4715:35
11:28
-0:15
21M
21.00 mi15:09:363:49:5210:5714:07
14:07
+2:39
35K
21.75 mi15:17:583:58:1410:578:22
11:11
-2:56
23M
23.00 mi15:32:124:12:2810:5914:14
11:22
+0:11
24M
24.00 mi15:43:454:24:0111:0011:33
11:33
+0:11
40K
24.85 mi15:53:354:33:5111:019:50
11:30
-0:03
25.2M
25.20 mi15:57:464:38:0211:024:11
12:08
+0:38
Finish
26.22 mi16:08:384:48:5411:0210:52
10:40
-1:28

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

10:12 /mi

Average Pace

11:02 /mi

Slowest Pace

14:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:46

48% of race

Time at Steady Pace

2:10:50

45% of race

Time at Slower Pace

18:18

6% of race

Average Pace: 11:01 /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 mi11:51:2731:4310:1331:43
10:13
#26071
10K
6.21 mi12:23:081:03:2410:1231:41
10:12
#25912
15K
9.32 mi12:55:241:35:4010:1632:16
10:23
#25849
20K
12.43 mi13:28:382:08:5410:2233:14
10:42
#25738
Half
13.11 mi13:36:092:16:2510:247:31
11:01
#25806
25K
15.53 mi14:03:302:43:4610:3327:21
11:17
#25761
30K
18.64 mi14:39:543:20:1010:4436:24
11:43
#25656
20M
20.00 mi14:55:293:35:4510:4715:35
11:28
#25557
21M
21.00 mi15:09:363:49:5210:5714:07
14:07
#25615
35K
21.75 mi15:17:583:58:1410:578:22
11:11
#25591
23M
23.00 mi15:32:124:12:2810:5914:14
11:22
#25529
24M
24.00 mi15:43:454:24:0111:0011:33
11:33
#25517
40K
24.85 mi15:53:354:33:5111:019:50
11:30
#25468
25.2M
25.20 mi15:57:464:38:0211:024:11
12:08
#25442
Finish
26.22 mi16:08:384:48:5411:0210:52
10:40
#25419
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi26071108001080025735(Top 91%)10638(Top 87%)10638(Top 195%)
10K6.21 mi3.10 mi25912+15910722+7810722+7825737(Top 91%)10651(Top 87%)10651(Top 195%)
15K9.32 mi3.11 mi25849+6310696+2610696+2625735(Top 91%)10638(Top 87%)10638(Top 195%)
20K12.43 mi3.11 mi25738+11110638+5810638+5825526(Top 90%)10552(Top 86%)10552(Top 193%)
Half13.11 mi0.68 mi25806-6810674-3610674-3626501(Top 93%)11118(Top 91%)11118(Top 203%)
25K15.53 mi2.42 mi25761+4510667+710667+725581(Top 90%)10622(Top 87%)10622(Top 194%)
30K18.64 mi3.11 mi25656+10510648+1910648+1925169(Top 89%)10492(Top 86%)10492(Top 192%)
20M20.00 mi1.36 mi25557+9910602+4610602+4624471(Top 86%)10210(Top 83%)10210(Top 187%)
21M21.00 mi1.00 mi25615-5810646-4410646-4426336(Top 93%)11230(Top 92%)11230(Top 205%)
35K21.75 mi0.75 mi25591+2410640+610640+624557(Top 86%)10366(Top 85%)10366(Top 190%)
23M23.00 mi1.25 mi25529+6210620+2010620+2024017(Top 85%)10111(Top 83%)10111(Top 185%)
24M24.00 mi1.00 mi25517+1210626-610626-624963(Top 88%)10611(Top 87%)10611(Top 194%)
40K24.85 mi0.85 mi25468+4910608+1810608+1824118(Top 85%)10229(Top 84%)10229(Top 187%)
25.2M25.20 mi0.35 mi25442+2610592+1610592+1623452(Top 83%)9898(Top 81%)9898(Top 181%)
Finish26.22 mi1.02 mi25419+2310586+610586+624630(Top 87%)10472(Top 86%)10472(Top 191%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21stories
+97ft-345ft

Overall

25735

Females

10638

F18-39

10638

5K→10K

3.1 - 6.2 mi

Top 91%
×5stories
+79ft-138ft

Overall

25737

Females

10651

F18-39

10651

10K→15K

6.2 - 9.3 mi

Top 91%
×3stories
+67ft-78ft

Overall

25735

Females

10638

F18-39

10638

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

25526

Females

10552

F18-39

10552

20K→Half

12.4 - 13.1 mi

Top 93%
×2stories
+19ft-37ft

Overall

26501

Females

11118

F18-39

11118

Half→25K

13.1 - 15.5 mi

Top 90%
×4stories
+66ft-88ft

Overall

25581

Females

10622

F18-39

10622

25K→30K

15.5 - 18.6 mi

Top 89%
×9stories
+181ft-148ft

Overall

25169

Females

10492

F18-39

10492

30K→20M

18.6 - 20.0 mi

Top 86%
×5stories
+64ft-50ft

Overall

24471

Females

10210

F18-39

10210

20M→21M

20.0 - 21.0 mi

Top 93%
×8stories
+106ft-24ft

Overall

26336

Females

11230

F18-39

11230

21M→35K

21.0 - 21.8 mi

Top 86%
×7stories
+17ft-86ft

Overall

24557

Females

10366

F18-39

10366

35K→23M

21.8 - 23.0 mi

Top 85%
×5stories
+23ft-63ft

Overall

24017

Females

10111

F18-39

10111

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

24963

Females

10611

F18-39

10611

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24118

Females

10229

F18-39

10229

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23452

Females

9898

F18-39

9898

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2stories
+22ft-21ft

Overall

24630

Females

10472

F18-39

10472

Passing Analysis

Category:
Athletes Passed
1319
Passed By
667
Net Change
+652
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26071
5K → 10K263104+159#26071#25912
10K → 15K15087+63#25912#25849
15K → 20K17867+111#25849#25738
20K → Half573-68#25738#25806
Half → 25K12075+45#25806#25761
25K → 30K17368+105#25761#25656
30K → 20M1078+99#25656#25557
20M → 21M2583-58#25557#25615
21M → 35K4420+24#25615#25591
35K → 23M8119+62#25591#25529
23M → 24M4331+12#25529#25517
24M → 40K5910+49#25517#25468
40K → 25.2M304+26#25468#25442
25.2M → Finish4118+23#25442#25419
TOTALS1319667+652
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing