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BOSTON MARATHON 2025

Chih-Chieh Wang

Bib: 17362•F

0:00
0:00
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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
25:23
Rank: #17915
Start → 5K
25:23 | 8:10/mi
10K· 6.21 mi
51:17
Rank: #18332 (-417)
5K → 10K
25:54 | 8:20/mi
15K· 9.32 mi
1:18:43
Rank: #19330 (-998)
10K → 15K
27:26 | 8:50/mi
20K· 12.43 mi
1:45:32
Rank: #19211 (+119)
15K → 20K
26:49 | 8:38/mi
Half· 13.11 mi
1:51:17
Rank: #19191 (+20)
20K → Half
5:45 | 8:26/mi
25K· 15.53 mi
2:12:18
Rank: #19012 (+179)
Half → 25K
21:01 | 8:40/mi
30K· 18.64 mi
2:39:17
Rank: #18411 (+601)
25K → 30K
26:59 | 8:41/mi
20M
2:50:54
Rank: #18056 (+355)
30K → 20M
11:37 | 8:33/mi
21M
3:00:06
Rank: #17862 (+194)
20M → 21M
9:12 | 9:12/mi
35K· 21.75 mi
3:06:19
Rank: #17714 (+148)
21M → 35K
6:13 | 8:19/mi
23M
3:17:42
Rank: #17639 (+75)
35K → 23M
11:23 | 9:05/mi
24M
3:26:37
Rank: #17598 (+41)
23M → 24M
8:55 | 8:55/mi
40K· 24.85 mi
3:34:04
Rank: #17486 (+112)
24M → 40K
7:27 | 8:43/mi
25.2M
3:37:30
Rank: #17473 (+13)
40K → 25.2M
3:26 | 9:57/mi
Finish· 26.22 mi
3:46:05
Rank: #17399 (+74)
25.2M → Finish
8:35 | 8:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:17
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time1:54:48
Pace8:45 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:5525:238:1025:23
8:10
-
10K
6.21 mi11:45:4951:178:1525:54
8:20
+0:10
15K
9.32 mi12:13:151:18:438:2727:26
8:50
+0:30
20K
12.43 mi12:40:041:45:328:3026:49
8:38
-0:12
Half
13.11 mi12:45:491:51:178:295:45
8:26
-0:12
25K
15.53 mi13:06:502:12:188:3121:01
8:40
+0:14
30K
18.64 mi13:33:492:39:178:3326:59
8:41
+0:01
20M
20.00 mi13:45:262:50:548:3311:37
8:33
-0:08
21M
21.00 mi13:54:383:00:068:359:12
9:12
+0:39
35K
21.75 mi14:00:513:06:198:346:13
8:19
-0:53
23M
23.00 mi14:12:143:17:428:3611:23
9:05
+0:46
24M
24.00 mi14:21:093:26:378:378:55
8:55
-0:10
40K
24.85 mi14:28:363:34:048:377:27
8:43
-0:12
25.2M
25.20 mi14:32:023:37:308:383:26
9:57
+1:14
Finish
26.22 mi14:40:373:46:058:388:35
8:25
-1:32

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

8:10 /mi

Average Pace

8:38 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:11:50

32% of race

Time at Steady Pace

2:01:19

54% of race

Time at Slower Pace

32:56

15% of race

Average Pace: 8:37 /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 mi11:19:5525:238:1025:23
8:10
#17915
10K
6.21 mi11:45:4951:178:1525:54
8:20
#18332
15K
9.32 mi12:13:151:18:438:2727:26
8:50
#19330
20K
12.43 mi12:40:041:45:328:3026:49
8:38
#19211
Half
13.11 mi12:45:491:51:178:295:45
8:26
#19191
25K
15.53 mi13:06:502:12:188:3121:01
8:40
#19012
30K
18.64 mi13:33:492:39:178:3326:59
8:41
#18411
20M
20.00 mi13:45:262:50:548:3311:37
8:33
#18056
21M
21.00 mi13:54:383:00:068:359:12
9:12
#17862
35K
21.75 mi14:00:513:06:198:346:13
8:19
#17714
23M
23.00 mi14:12:143:17:428:3611:23
9:05
#17639
24M
24.00 mi14:21:093:26:378:378:55
8:55
#17598
40K
24.85 mi14:28:363:34:048:377:27
8:43
#17486
25.2M
25.20 mi14:32:023:37:308:383:26
9:57
#17473
Finish
26.22 mi14:40:373:46:058:388:35
8:25
#17399
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi179156291629121178(Top 75%)8096(Top 66%)8096(Top 148%)
10K6.21 mi3.10 mi18332-4176523-2326523-23218795(Top 66%)6759(Top 55%)6759(Top 124%)
15K9.32 mi3.11 mi19330-9987077-5547077-55421178(Top 75%)8096(Top 66%)8096(Top 148%)
20K12.43 mi3.11 mi19211+1197027+507027+5019023(Top 67%)6928(Top 57%)6928(Top 127%)
Half13.11 mi0.68 mi19191+207019+87019+818759(Top 66%)6753(Top 55%)6753(Top 123%)
25K15.53 mi2.42 mi19012+1796923+966923+9618201(Top 64%)6532(Top 53%)6532(Top 119%)
30K18.64 mi3.11 mi18411+6016609+3146609+31415922(Top 56%)5423(Top 44%)5423(Top 99%)
20M20.00 mi1.36 mi18056+3556456+1536456+15314127(Top 50%)4591(Top 38%)4591(Top 84%)
21M21.00 mi1.00 mi17862+1946355+1016355+10114671(Top 52%)4989(Top 41%)4989(Top 91%)
35K21.75 mi0.75 mi17714+1486293+626293+6214385(Top 51%)4916(Top 40%)4916(Top 90%)
23M23.00 mi1.25 mi17639+756300-76300-716790(Top 59%)6329(Top 52%)6329(Top 116%)
24M24.00 mi1.00 mi17598+416305-56305-516946(Top 60%)6470(Top 53%)6470(Top 118%)
40K24.85 mi0.85 mi17486+1126271+346271+3414733(Top 52%)5387(Top 44%)5387(Top 99%)
25.2M25.20 mi0.35 mi17473+136273-26273-216868(Top 59%)6522(Top 53%)6522(Top 119%)
Finish26.22 mi1.02 mi17399+746258+156258+1515767(Top 56%)5899(Top 48%)5899(Top 108%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21stories
+97ft-345ft

Overall

21178

Females

8096

F18-39

8096

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

18795

Females

6759

F18-39

6759

10K→15K

6.2 - 9.3 mi

Top 75%
×3stories
+67ft-78ft

Overall

21178

Females

8096

F18-39

8096

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

19023

Females

6928

F18-39

6928

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

18759

Females

6753

F18-39

6753

Half→25K

13.1 - 15.5 mi

Top 64%
×4stories
+66ft-88ft

Overall

18201

Females

6532

F18-39

6532

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

15922

Females

5423

F18-39

5423

30K→20M

18.6 - 20.0 mi

Top 50%
×5stories
+64ft-50ft

Overall

14127

Females

4591

F18-39

4591

20M→21M

20.0 - 21.0 mi

Top 52%
×8stories
+106ft-24ft

Overall

14671

Females

4989

F18-39

4989

21M→35K

21.0 - 21.8 mi

Top 51%
×7stories
+17ft-86ft

Overall

14385

Females

4916

F18-39

4916

35K→23M

21.8 - 23.0 mi

Top 59%
×5stories
+23ft-63ft

Overall

16790

Females

6329

F18-39

6329

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

16946

Females

6470

F18-39

6470

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14733

Females

5387

F18-39

5387

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1story
+13ft-16ft

Overall

16868

Females

6522

F18-39

6522

25.2M→Finish

25.2 - 26.2 mi

Top 56%
×2stories
+22ft-21ft

Overall

15767

Females

5899

F18-39

5899

Passing Analysis

Category:
Athletes Passed
2558
Passed By
2042
Net Change
+516
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17915
5K → 10K132549-417#17915#18332
10K → 15K301028-998#18332#19330
15K → 20K249130+119#19330#19211
20K → Half4727+20#19211#19191
Half → 25K25374+179#19191#19012
25K → 30K62019+601#19012#18411
30K → 20M3605+355#18411#18056
20M → 21M21016+194#18056#17862
21M → 35K1557+148#17862#17714
35K → 23M14772+75#17714#17639
23M → 24M10059+41#17639#17598
24M → 40K12614+112#17598#17486
40K → 25.2M3219+13#17486#17473
25.2M → Finish9723+74#17473#17399
TOTALS25582042+516
📊

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