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BOSTON MARATHON 2025

Yun Chen Wei

Bib: 22105•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:59
Rank: #19107
Start → 5K
8:22/mi
25:59 split
10K· 6.21 mi
52:23
Rank: #19429 (-322)
5K → 10K
8:30/mi
26:24 split
15K· 9.32 mi
1:19:00
Rank: #19517 (-88)
10K → 15K
8:34/mi
26:37 split
20K· 12.43 mi
1:46:36
Rank: #19756 (-239)
15K → 20K
8:53/mi
27:36 split
Half· 13.11 mi
1:52:36
Rank: #19815 (-59)
20K → Half
8:48/mi
6:00 split
25K· 15.53 mi
2:14:30
Rank: #19824 (-9)
Half → 25K
9:02/mi
21:54 split
30K· 18.64 mi
2:44:18
Rank: #19949 (-125)
25K → 30K
9:36/mi
29:48 split
20M
2:57:07
Rank: #19866 (+83)
30K → 20M
9:26/mi
12:49 split
21M
3:07:16
Rank: #19794 (+72)
20M → 21M
10:09/mi
10:09 split
35K· 21.75 mi
3:13:56
Rank: #19720 (+74)
21M → 35K
8:55/mi
6:40 split
23M
3:25:32
Rank: #19588 (+132)
35K → 23M
9:16/mi
11:36 split
24M
3:34:24
Rank: #19471 (+117)
23M → 24M
8:52/mi
8:52 split
40K· 24.85 mi
3:42:06
Rank: #19349 (+122)
24M → 40K
9:00/mi
7:42 split
25.2M
3:45:29
Rank: #19280 (+69)
40K → 25.2M
9:49/mi
3:23 split
Finish· 26.22 mi
3:54:28
Rank: #19240 (+40)
25.2M → Finish
8:49/mi
8:59 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:36
Pace8:35 /mi
2nd Half
Distance13.11 mi
Time2:01:52
Pace9:18 /mi
📊Positive Split: 8.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5325:598:2225:59
8:22
-
10K
6.21 mi11:47:1752:238:2626:24
8:30
+0:08
15K
9.32 mi12:13:541:19:008:2926:37
8:34
+0:04
20K
12.43 mi12:41:301:46:368:3527:36
8:53
+0:19
Half
13.11 mi12:47:301:52:368:356:00
8:48
-0:05
25K
15.53 mi13:09:242:14:308:3921:54
9:02
+0:14
30K
18.64 mi13:39:122:44:188:4929:48
9:36
+0:34
20M
20.00 mi13:52:012:57:078:5112:49
9:26
-0:10
21M
21.00 mi14:02:103:07:168:5510:09
10:09
+0:43
35K
21.75 mi14:08:503:13:568:556:40
8:55
-1:14
23M
23.00 mi14:20:263:25:328:5611:36
9:16
+0:21
24M
24.00 mi14:29:183:34:248:568:52
8:52
-0:24
40K
24.85 mi14:37:003:42:068:567:42
9:00
+0:08
25.2M
25.20 mi14:40:233:45:298:573:23
9:49
+0:49
Finish
26.22 mi14:49:223:54:288:578:59
8:49
-1:00

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

8:22 /mi

Average Pace

8:57 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:19:00

34% of race

Time at Steady Pace

1:27:43

37% of race

Time at Slower Pace

1:07:45

29% of race

Average Pace: 8:57 /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 mi11:20:5325:598:2225:59
8:22
#19107
10K
6.21 mi11:47:1752:238:2626:24
8:30
#19429
15K
9.32 mi12:13:541:19:008:2926:37
8:34
#19517
20K
12.43 mi12:41:301:46:368:3527:36
8:53
#19756
Half
13.11 mi12:47:301:52:368:356:00
8:48
#19815
25K
15.53 mi13:09:242:14:308:3921:54
9:02
#19824
30K
18.64 mi13:39:122:44:188:4929:48
9:36
#19949
20M
20.00 mi13:52:012:57:078:5112:49
9:26
#19866
21M
21.00 mi14:02:103:07:168:5510:09
10:09
#19794
35K
21.75 mi14:08:503:13:568:556:40
8:55
#19720
23M
23.00 mi14:20:263:25:328:5611:36
9:16
#19588
24M
24.00 mi14:29:183:34:248:568:52
8:52
#19471
40K
24.85 mi14:37:003:42:068:567:42
9:00
#19349
25.2M
25.20 mi14:40:233:45:298:573:23
9:49
#19280
Finish
26.22 mi14:49:223:54:288:578:59
8:49
#19240
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi191076968696819745(Top 70%)7296(Top 60%)7296(Top 402%)
10K6.21 mi3.10 mi19429-3227141-1737141-17319796(Top 70%)7358(Top 60%)7358(Top 406%)
15K9.32 mi3.11 mi19517-887187-467187-4619745(Top 70%)7296(Top 60%)7296(Top 402%)
20K12.43 mi3.11 mi19756-2397338-1517338-15120387(Top 72%)7702(Top 63%)7702(Top 425%)
Half13.11 mi0.68 mi19815-597371-337371-3320888(Top 74%)7971(Top 65%)7971(Top 440%)
25K15.53 mi2.42 mi19824-97384-137384-1320055(Top 71%)7560(Top 62%)7560(Top 417%)
30K18.64 mi3.11 mi19949-1257497-1137497-11320318(Top 72%)7830(Top 64%)7830(Top 432%)
20M20.00 mi1.36 mi19866+837471+267471+2618871(Top 66%)7197(Top 59%)7197(Top 397%)
21M21.00 mi1.00 mi19794+727456+157456+1518875(Top 66%)7273(Top 59%)7273(Top 401%)
35K21.75 mi0.75 mi19720+747428+287428+2817848(Top 63%)6824(Top 56%)6824(Top 376%)
23M23.00 mi1.25 mi19588+1327390+387390+3817645(Top 62%)6817(Top 56%)6817(Top 376%)
24M24.00 mi1.00 mi19471+1177344+467344+4616707(Top 59%)6332(Top 52%)6332(Top 349%)
40K24.85 mi0.85 mi19349+1227292+527292+5216386(Top 58%)6263(Top 51%)6263(Top 345%)
25.2M25.20 mi0.35 mi19280+697264+287264+2816237(Top 57%)6222(Top 51%)6222(Top 343%)
Finish26.22 mi1.02 mi19240+407268-47268-418155(Top 64%)7164(Top 59%)7164(Top 395%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19745

Females

7296

F45-49

7296

5K→10K

3.1 - 6.2 mi

Top 70%
×5story building
+79ft-138ft

Overall

19796

Females

7358

F45-49

7358

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19745

Females

7296

F45-49

7296

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20387

Females

7702

F45-49

7702

20K→Half

12.4 - 13.1 mi

Top 74%
×2story building
+19ft-37ft

Overall

20888

Females

7971

F45-49

7971

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20055

Females

7560

F45-49

7560

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

20318

Females

7830

F45-49

7830

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

18871

Females

7197

F45-49

7197

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18875

Females

7273

F45-49

7273

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

17848

Females

6824

F45-49

6824

35K→23M

21.8 - 23.0 mi

Top 62%
×5story building
+23ft-63ft

Overall

17645

Females

6817

F45-49

6817

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

16707

Females

6332

F45-49

6332

24M→40K

24.0 - 24.9 mi

Top 58%
×1story
+6ft-20ft

Overall

16386

Females

6263

F45-49

6263

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16237

Females

6222

F45-49

6222

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2story building
+22ft-21ft

Overall

18155

Females

7164

F45-49

7164

Passing Analysis

Category:
Athletes Passed
1723
Passed By
1856
Net Change
-133
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19107
5K → 10K131453-322#19107#19429
10K → 15K163251-88#19429#19517
15K → 20K129368-239#19517#19756
20K → Half1473-59#19756#19815
Half → 25K160169-9#19815#19824
25K → 30K184309-125#19824#19949
30K → 20M14966+83#19949#19866
20M → 21M12957+72#19866#19794
21M → 35K8511+74#19794#19720
35K → 23M16634+132#19720#19588
23M → 24M12912+117#19588#19471
24M → 40K1319+122#19471#19349
40K → 25.2M745+69#19349#19280
25.2M → Finish7939+40#19280#19240
TOTALS17231856-133
📊

Passing Visuals

Category:
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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