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BOSTON MARATHON 2025

Weifang Shi

Bib: 29657•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:33
Rank: #24282
Start → 5K
29:33 | 9:31/mi
10K· 6.21 mi
58:13
Rank: #23790 (+492)
5K → 10K
28:40 | 9:14/mi
15K· 9.32 mi
1:27:06
Rank: #23590 (+200)
10K → 15K
28:53 | 9:18/mi
20K· 12.43 mi
1:56:22
Rank: #23329 (+261)
15K → 20K
29:16 | 9:25/mi
Half· 13.11 mi
2:02:35
Rank: #23285 (+44)
20K → Half
6:13 | 9:07/mi
25K· 15.53 mi
2:25:49
Rank: #23079 (+206)
Half → 25K
23:14 | 9:35/mi
30K· 18.64 mi
2:57:10
Rank: #22815 (+264)
25K → 30K
31:21 | 10:05/mi
20M
3:10:36
Rank: #22654 (+161)
30K → 20M
13:26 | 9:53/mi
21M
3:21:13
Rank: #22501 (+153)
20M → 21M
10:37 | 10:37/mi
35K· 21.75 mi
3:28:32
Rank: #22446 (+55)
21M → 35K
7:19 | 9:47/mi
23M
3:41:27
Rank: #22383 (+63)
35K → 23M
12:55 | 10:19/mi
24M
3:51:09
Rank: #22282 (+101)
23M → 24M
9:42 | 9:42/mi
40K· 24.85 mi
3:59:31
Rank: #22202 (+80)
24M → 40K
8:22 | 9:47/mi
25.2M
4:02:54
Rank: #22123 (+79)
40K → 25.2M
3:23 | 9:49/mi
Finish· 26.22 mi
4:11:46
Rank: #21963 (+160)
25.2M → Finish
8:52 | 8:42/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:02:35
Pace9:21 /mi
2nd Half
Distance13.11 mi
Time2:09:11
Pace9:51 /mi
📊Positive Split: 5.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1629:339:3129:33
9:31
-
10K
6.21 mi12:21:5658:139:2228:40
9:14
-0:17
15K
9.32 mi12:50:491:27:069:2128:53
9:18
+0:04
20K
12.43 mi13:20:051:56:229:2229:16
9:25
+0:07
Half
13.11 mi13:26:182:02:359:216:13
9:07
-0:18
25K
15.53 mi13:49:322:25:499:2323:14
9:35
+0:28
30K
18.64 mi14:20:532:57:109:3031:21
10:05
+0:30
20M
20.00 mi14:34:193:10:369:3213:26
9:53
-0:12
21M
21.00 mi14:44:563:21:139:3510:37
10:37
+0:44
35K
21.75 mi14:52:153:28:329:357:19
9:47
-0:50
23M
23.00 mi15:05:103:41:279:3812:55
10:19
+0:32
24M
24.00 mi15:14:523:51:099:389:42
9:42
-0:37
40K
24.85 mi15:23:143:59:319:388:22
9:47
+0:05
25.2M
25.20 mi15:26:374:02:549:383:23
9:49
+0:02
Finish
26.22 mi15:35:294:11:469:378:52
8:42
-1:07

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

8:42 /mi

Average Pace

9:37 /mi

Slowest Pace

10:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:41:54

40% of race

Time at Steady Pace

1:34:59

38% of race

Time at Slower Pace

54:53

22% of race

Average Pace: 9:36 /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 mi11:53:1629:339:3129:33
9:31
#24282
10K
6.21 mi12:21:5658:139:2228:40
9:14
#23790
15K
9.32 mi12:50:491:27:069:2128:53
9:18
#23590
20K
12.43 mi13:20:051:56:229:2229:16
9:25
#23329
Half
13.11 mi13:26:182:02:359:216:13
9:07
#23285
25K
15.53 mi13:49:322:25:499:2323:14
9:35
#23079
30K
18.64 mi14:20:532:57:109:3031:21
10:05
#22815
20M
20.00 mi14:34:193:10:369:3213:26
9:53
#22654
21M
21.00 mi14:44:563:21:139:3510:37
10:37
#22501
35K
21.75 mi14:52:153:28:329:357:19
9:47
#22446
23M
23.00 mi15:05:103:41:279:3812:55
10:19
#22383
24M
24.00 mi15:14:523:51:099:389:42
9:42
#22282
40K
24.85 mi15:23:143:59:319:388:22
9:47
#22202
25.2M
25.20 mi15:26:374:02:549:383:23
9:49
#22123
Finish
26.22 mi15:35:294:11:469:378:52
8:42
#21963
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi242829839983923211(Top 82%)9211(Top 75%)9211(Top 707%)
10K6.21 mi3.10 mi23790+4929568+2719568+27123303(Top 82%)9297(Top 76%)9297(Top 714%)
15K9.32 mi3.11 mi23590+2009455+1139455+11323211(Top 82%)9211(Top 75%)9211(Top 707%)
20K12.43 mi3.11 mi23329+2619300+1559300+15522635(Top 80%)8942(Top 73%)8942(Top 686%)
Half13.11 mi0.68 mi23285+449278+229278+2222295(Top 78%)8777(Top 72%)8777(Top 674%)
25K15.53 mi2.42 mi23079+2069185+939185+9322133(Top 78%)8725(Top 71%)8725(Top 670%)
30K18.64 mi3.11 mi22815+2649077+1089077+10821878(Top 77%)8713(Top 71%)8713(Top 669%)
20M20.00 mi1.36 mi22654+1619016+619016+6120589(Top 72%)8133(Top 67%)8133(Top 624%)
21M21.00 mi1.00 mi22501+1538949+678949+6720374(Top 72%)8120(Top 66%)8120(Top 623%)
35K21.75 mi0.75 mi22446+558929+208929+2021293(Top 75%)8667(Top 71%)8667(Top 665%)
23M23.00 mi1.25 mi22383+638930-18930-121491(Top 76%)8811(Top 72%)8811(Top 676%)
24M24.00 mi1.00 mi22282+1018898+328898+3220404(Top 72%)8296(Top 68%)8296(Top 637%)
40K24.85 mi0.85 mi22202+808864+348864+3419792(Top 70%)8044(Top 66%)8044(Top 617%)
25.2M25.20 mi0.35 mi22123+798835+298835+2916254(Top 57%)6239(Top 51%)6239(Top 479%)
Finish26.22 mi1.02 mi21963+1608759+768759+7617525(Top 62%)6847(Top 56%)6847(Top 525%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

23211

Females

9211

F50-54

9211

5K→10K

3.1 - 6.2 mi

Top 82%
×5stories
+79ft-138ft

Overall

23303

Females

9297

F50-54

9297

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

23211

Females

9211

F50-54

9211

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

22635

Females

8942

F50-54

8942

20K→Half

12.4 - 13.1 mi

Top 78%
×2stories
+19ft-37ft

Overall

22295

Females

8777

F50-54

8777

Half→25K

13.1 - 15.5 mi

Top 78%
×4stories
+66ft-88ft

Overall

22133

Females

8725

F50-54

8725

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

21878

Females

8713

F50-54

8713

30K→20M

18.6 - 20.0 mi

Top 72%
×5stories
+64ft-50ft

Overall

20589

Females

8133

F50-54

8133

20M→21M

20.0 - 21.0 mi

Top 72%
×8stories
+106ft-24ft

Overall

20374

Females

8120

F50-54

8120

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

21293

Females

8667

F50-54

8667

35K→23M

21.8 - 23.0 mi

Top 76%
×5stories
+23ft-63ft

Overall

21491

Females

8811

F50-54

8811

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20404

Females

8296

F50-54

8296

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19792

Females

8044

F50-54

8044

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16254

Females

6239

F50-54

6239

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

17525

Females

6847

F50-54

6847

Passing Analysis

Category:
Athletes Passed
2708
Passed By
389
Net Change
+2319
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24282
5K → 10K56674+492#24282#23790
10K → 15K27474+200#23790#23590
15K → 20K30342+261#23590#23329
20K → Half5612+44#23329#23285
Half → 25K24438+206#23285#23079
25K → 30K30642+264#23079#22815
30K → 20M17110+161#22815#22654
20M → 21M17017+153#22654#22501
21M → 35K6914+55#22501#22446
35K → 23M9734+63#22446#22383
23M → 24M11514+101#22383#22282
24M → 40K9212+80#22282#22202
40K → 25.2M790+79#22202#22123
25.2M → Finish1666+160#22123#21963
TOTALS2708389+2319
📊

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