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BOSTON MARATHON 2025

Chinchin Wang

Bib: 13858•F

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0:00
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Overall
#0 / 28404
Top 29%
Gender (Female)
#0 / 12228
Top 12%
Division (F18-39)
#0 / 5469
Top 21%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:53
Rank: #11010
Start → 5K
22:53 | 7:22/mi
10K· 6.21 mi
45:34
Rank: #10619 (+391)
5K → 10K
22:41 | 7:18/mi
15K· 9.32 mi
1:08:13
Rank: #10372 (+247)
10K → 15K
22:39 | 7:17/mi
20K· 12.43 mi
1:31:03
Rank: #10098 (+274)
15K → 20K
22:50 | 7:21/mi
Half· 13.11 mi
1:35:58
Rank: #10047 (+51)
20K → Half
4:55 | 7:12/mi
25K· 15.53 mi
1:53:59
Rank: #9889 (+158)
Half → 25K
18:01 | 7:26/mi
30K· 18.64 mi
2:17:46
Rank: #9622 (+267)
25K → 30K
23:47 | 7:39/mi
20M
2:27:56
Rank: #9350 (+272)
30K → 20M
10:10 | 7:29/mi
21M
2:36:00
Rank: #9223 (+127)
20M → 21M
8:04 | 8:04/mi
35K· 21.75 mi
2:41:23
Rank: #9099 (+124)
21M → 35K
5:23 | 7:12/mi
23M
2:50:38
Rank: #8797 (+302)
35K → 23M
9:15 | 7:23/mi
24M
2:57:49
Rank: #8603 (+194)
23M → 24M
7:11 | 7:11/mi
40K· 24.85 mi
3:04:01
Rank: #8402 (+201)
24M → 40K
6:12 | 7:15/mi
25.2M
3:06:44
Rank: #8313 (+89)
40K → 25.2M
2:43 | 7:53/mi
Finish· 26.22 mi
3:13:50
Rank: #8169 (+144)
25.2M → Finish
7:06 | 6:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:35:58
Pace7:19 /mi
2nd Half
Distance13.11 mi
Time1:37:52
Pace7:28 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:5122:537:2222:53
7:22
-
10K
6.21 mi11:14:3245:347:2022:41
7:18
-0:04
15K
9.32 mi11:37:111:08:137:1922:39
7:17
-0:01
20K
12.43 mi12:00:011:31:037:2022:50
7:21
+0:04
Half
13.11 mi12:04:561:35:587:194:55
7:12
-0:09
25K
15.53 mi12:22:571:53:597:2018:01
7:26
+0:14
30K
18.64 mi12:46:442:17:467:2323:47
7:39
+0:13
20M
20.00 mi12:56:542:27:567:2410:10
7:29
-0:10
21M
21.00 mi13:04:582:36:007:268:04
8:04
+0:35
35K
21.75 mi13:10:212:41:237:255:23
7:12
-0:52
23M
23.00 mi13:19:362:50:387:259:15
7:23
+0:11
24M
24.00 mi13:26:472:57:497:257:11
7:11
-0:12
40K
24.85 mi13:32:593:04:017:246:12
7:15
+0:04
25.2M
25.20 mi13:35:423:06:447:252:43
7:53
+0:38
Finish
26.22 mi13:42:483:13:507:247:06
6:58
-0:55

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

6:58 /mi

Average Pace

7:24 /mi

Slowest Pace

8:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:03:03

94% of race

Time at Steady Pace

10:47

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:24 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:51:5122:537:2222:53
7:22
#11010
10K
6.21 mi11:14:3245:347:2022:41
7:18
#10619
15K
9.32 mi11:37:111:08:137:1922:39
7:17
#10372
20K
12.43 mi12:00:011:31:037:2022:50
7:21
#10098
Half
13.11 mi12:04:561:35:587:194:55
7:12
#10047
25K
15.53 mi12:22:571:53:597:2018:01
7:26
#9889
30K
18.64 mi12:46:442:17:467:2323:47
7:39
#9622
20M
20.00 mi12:56:542:27:567:2410:10
7:29
#9350
21M
21.00 mi13:04:582:36:007:268:04
8:04
#9223
35K
21.75 mi13:10:212:41:237:255:23
7:12
#9099
23M
23.00 mi13:19:362:50:387:259:15
7:23
#8797
24M
24.00 mi13:26:472:57:497:257:11
7:11
#8603
40K
24.85 mi13:32:593:04:017:246:12
7:15
#8402
25.2M
25.20 mi13:35:423:06:447:252:43
7:53
#8313
Finish
26.22 mi13:42:483:13:507:247:06
6:58
#8169
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi11010228522859926(Top 35%)1849(Top 15%)1849(Top 34%)
10K6.21 mi3.10 mi10619+3912119+1662119+16610358(Top 36%)1986(Top 16%)1986(Top 36%)
15K9.32 mi3.11 mi10372+2472008+1112008+1119926(Top 35%)1849(Top 15%)1849(Top 34%)
20K12.43 mi3.11 mi10098+2741910+981910+989463(Top 33%)1716(Top 14%)1716(Top 31%)
Half13.11 mi0.68 mi10047+511893+171893+179189(Top 32%)1574(Top 13%)1574(Top 29%)
25K15.53 mi2.42 mi9889+1581854+391854+399390(Top 33%)1814(Top 15%)1814(Top 33%)
30K18.64 mi3.11 mi9622+2671788+661788+668866(Top 31%)1772(Top 14%)1772(Top 32%)
20M20.00 mi1.36 mi9350+2721694+941694+946911(Top 24%)1122(Top 9%)1122(Top 21%)
21M21.00 mi1.00 mi9223+1271671+231671+237769(Top 27%)1615(Top 13%)1615(Top 30%)
35K21.75 mi0.75 mi9099+1241642+291642+296626(Top 23%)1150(Top 9%)1150(Top 21%)
23M23.00 mi1.25 mi8797+3021553+891553+896023(Top 21%)1033(Top 8%)1033(Top 19%)
24M24.00 mi1.00 mi8603+1941504+491504+495763(Top 20%)984(Top 8%)984(Top 18%)
40K24.85 mi0.85 mi8402+2011460+441460+445424(Top 19%)918(Top 8%)918(Top 17%)
25.2M25.20 mi0.35 mi8313+891447+131447+135394(Top 19%)1024(Top 8%)1024(Top 19%)
Finish26.22 mi1.02 mi8169+1441419+281419+285553(Top 20%)1082(Top 9%)1082(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

9926

Females

1849

F18-39

1849

5K→10K

3.1 - 6.2 mi

Top 36%
×5stories
+79ft-138ft

Overall

10358

Females

1986

F18-39

1986

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

9926

Females

1849

F18-39

1849

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

9463

Females

1716

F18-39

1716

20K→Half

12.4 - 13.1 mi

Top 32%
×2stories
+19ft-37ft

Overall

9189

Females

1574

F18-39

1574

Half→25K

13.1 - 15.5 mi

Top 33%
×4stories
+66ft-88ft

Overall

9390

Females

1814

F18-39

1814

25K→30K

15.5 - 18.6 mi

Top 31%
×9stories
+181ft-148ft

Overall

8866

Females

1772

F18-39

1772

30K→20M

18.6 - 20.0 mi

Top 24%
×5stories
+64ft-50ft

Overall

6911

Females

1122

F18-39

1122

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

7769

Females

1615

F18-39

1615

21M→35K

21.0 - 21.8 mi

Top 23%
×7stories
+17ft-86ft

Overall

6626

Females

1150

F18-39

1150

35K→23M

21.8 - 23.0 mi

Top 21%
×5stories
+23ft-63ft

Overall

6023

Females

1033

F18-39

1033

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5763

Females

984

F18-39

984

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5424

Females

918

F18-39

918

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5394

Females

1024

F18-39

1024

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5553

Females

1082

F18-39

1082

Passing Analysis

Category:
Athletes Passed
3309*
Passed By
467
Net Change
+2841
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11010
5K → 10K504113+391#11010#10619
10K → 15K30457+247#10619#10372
15K → 20K32146+274#10372#10098
20K → Half6211+51#10098#10047
Half → 25K227*69+158#10047#9889
25K → 30K367100+267#9889#9622
30K → 20M2764+272#9622#9350
20M → 21M15528+127#9350#9223
21M → 35K1284+124#9223#9099
35K → 23M3108+302#9099#8797
23M → 24M1995+194#8797#8603
24M → 40K2065+201#8603#8402
40K → 25.2M945+89#8402#8313
25.2M → Finish15612+144#8313#8169
TOTALS3309*467+2841

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

📊

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