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BOSTON MARATHON 2025

Guoying Zhang

Bib: 18962•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F40-44)
#0 / 1718
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:17
Rank: #17616
Start → 5K
25:17 | 8:08/mi
10K· 6.21 mi
52:34
Rank: #19583 (-1967)
5K → 10K
27:17 | 8:47/mi
15K· 9.32 mi
1:22:34
Rank: #21569 (-1986)
10K → 15K
30:00 | 9:39/mi
20K· 12.43 mi
1:55:59
Rank: #23232 (-1663)
15K → 20K
33:25 | 10:45/mi
Half· 13.11 mi
2:03:06
Rank: #23409 (-177)
20K → Half
7:07 | 10:26/mi
25K· 15.53 mi
2:30:48
Rank: #23991 (-582)
Half → 25K
27:42 | 11:25/mi
30K· 18.64 mi
3:10:55
Rank: #24736 (-745)
25K → 30K
40:07 | 12:55/mi
20M
3:28:42
Rank: #24947 (-211)
30K → 20M
17:47 | 13:05/mi
21M
3:45:11
Rank: #25260 (-313)
20M → 21M
16:29 | 16:29/mi
35K· 21.75 mi
3:55:27
Rank: #25394 (-134)
21M → 35K
10:16 | 13:43/mi
23M
4:13:38
Rank: #25635 (-241)
35K → 23M
18:11 | 14:31/mi
24M
4:26:55
Rank: #25730 (-95)
23M → 24M
13:17 | 13:17/mi
40K· 24.85 mi
4:38:31
Rank: #25803 (-73)
24M → 40K
11:36 | 13:34/mi
25.2M
4:43:37
Rank: #25842 (-39)
40K → 25.2M
5:06 | 14:47/mi
Finish· 26.22 mi
4:54:53
Rank: #25842
25.2M → Finish
11:16 | 11:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:06
Pace9:23 /mi
2nd Half
Distance13.11 mi
Time2:51:47
Pace13:06 /mi
📊Positive Split: 39.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:4125:178:0825:17
8:08
-
10K
6.21 mi11:48:5852:348:2827:17
8:47
+0:39
15K
9.32 mi12:18:581:22:348:5230:00
9:39
+0:52
20K
12.43 mi12:52:231:55:599:2033:25
10:45
+1:06
Half
13.11 mi12:59:302:03:069:237:07
10:26
-0:19
25K
15.53 mi13:27:122:30:489:4227:42
11:25
+0:59
30K
18.64 mi14:07:193:10:5510:1540:07
12:55
+1:30
20M
20.00 mi14:25:063:28:4210:2617:47
13:05
+0:10
21M
21.00 mi14:41:353:45:1110:4316:29
16:29
+3:24
35K
21.75 mi14:51:513:55:2710:5010:16
13:43
-2:46
23M
23.00 mi15:10:024:13:3811:0218:11
14:31
+0:48
24M
24.00 mi15:23:194:26:5511:0713:17
13:17
-1:14
40K
24.85 mi15:34:554:38:3111:1211:36
13:34
+0:17
25.2M
25.20 mi15:40:014:43:3711:155:06
14:47
+1:13
Finish
26.22 mi15:51:174:54:5311:1511:16
11:03
-3:44

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

8:08 /mi

Average Pace

11:15 /mi

Slowest Pace

16:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:04

55% of race

Time at Steady Pace

1:33:03

32% of race

Time at Slower Pace

39:46

13% of race

Average Pace: 11:15 /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 mi11:21:4125:178:0825:17
8:08
#17616
10K
6.21 mi11:48:5852:348:2827:17
8:47
#19583
15K
9.32 mi12:18:581:22:348:5230:00
9:39
#21569
20K
12.43 mi12:52:231:55:599:2033:25
10:45
#23232
Half
13.11 mi12:59:302:03:069:237:07
10:26
#23409
25K
15.53 mi13:27:122:30:489:4227:42
11:25
#23991
30K
18.64 mi14:07:193:10:5510:1540:07
12:55
#24736
20M
20.00 mi14:25:063:28:4210:2617:47
13:05
#24947
21M
21.00 mi14:41:353:45:1110:4316:29
16:29
#25260
35K
21.75 mi14:51:513:55:2710:5010:16
13:43
#25394
23M
23.00 mi15:10:024:13:3811:0218:11
14:31
#25635
24M
24.00 mi15:23:194:26:5511:0713:17
13:17
#25730
40K
24.85 mi15:34:554:38:3111:1211:36
13:34
#25803
25.2M
25.20 mi15:40:014:43:3711:155:06
14:47
#25842
Finish
26.22 mi15:51:174:54:5311:1511:16
11:03
#25842
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi176166109610924152(Top 85%)9756(Top 80%)9756(Top 568%)
10K6.21 mi3.10 mi19583-19677234-11257234-112521303(Top 75%)8200(Top 67%)8200(Top 477%)
15K9.32 mi3.11 mi21569-19868345-11118345-111124152(Top 85%)9756(Top 80%)9756(Top 568%)
20K12.43 mi3.11 mi23232-16639252-9079252-90725636(Top 90%)10610(Top 87%)10610(Top 618%)
Half13.11 mi0.68 mi23409-1779346-949346-9425665(Top 90%)10646(Top 87%)10646(Top 620%)
25K15.53 mi2.42 mi23991-5829696-3509696-35025762(Top 91%)10729(Top 88%)10729(Top 625%)
30K18.64 mi3.11 mi24736-74510136-44010136-44026585(Top 94%)11270(Top 92%)11270(Top 656%)
20M20.00 mi1.36 mi24947-21110266-13010266-13026530(Top 93%)11303(Top 92%)11303(Top 658%)
21M21.00 mi1.00 mi25260-31310456-19010456-19028004(Top 99%)12056(Top 99%)12056(Top 702%)
35K21.75 mi0.75 mi25394-13410542-8610542-8627508(Top 97%)11860(Top 97%)11860(Top 690%)
23M23.00 mi1.25 mi25635-24110678-13610678-13627658(Top 97%)11933(Top 98%)11933(Top 695%)
24M24.00 mi1.00 mi25730-9510740-6210740-6227126(Top 96%)11708(Top 96%)11708(Top 681%)
40K24.85 mi0.85 mi25803-7310786-4610786-4626811(Top 94%)11553(Top 94%)11553(Top 672%)
25.2M25.20 mi0.35 mi25842-3910805-1910805-1926954(Top 95%)11639(Top 95%)11639(Top 677%)
Finish26.22 mi1.02 mi2584210815-1010815-1025459(Top 90%)10891(Top 89%)10891(Top 634%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

24152

Females

9756

F40-44

9756

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

21303

Females

8200

F40-44

8200

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

24152

Females

9756

F40-44

9756

15K→20K

9.3 - 12.4 mi

Top 90%
×5stories
+106ft-86ft

Overall

25636

Females

10610

F40-44

10610

20K→Half

12.4 - 13.1 mi

Top 90%
×2stories
+19ft-37ft

Overall

25665

Females

10646

F40-44

10646

Half→25K

13.1 - 15.5 mi

Top 91%
×4stories
+66ft-88ft

Overall

25762

Females

10729

F40-44

10729

25K→30K

15.5 - 18.6 mi

Top 94%
×9stories
+181ft-148ft

Overall

26585

Females

11270

F40-44

11270

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

26530

Females

11303

F40-44

11303

20M→21M

20.0 - 21.0 mi

Top 99%
×8stories
+106ft-24ft

Overall

28004

Females

12056

F40-44

12056

21M→35K

21.0 - 21.8 mi

Top 97%
×7stories
+17ft-86ft

Overall

27508

Females

11860

F40-44

11860

35K→23M

21.8 - 23.0 mi

Top 97%
×5stories
+23ft-63ft

Overall

27658

Females

11933

F40-44

11933

23M→24M

23.0 - 24.0 mi

Top 96%
×6stories
+12ft-82ft

Overall

27126

Females

11708

F40-44

11708

24M→40K

24.0 - 24.9 mi

Top 94%
×1story
+6ft-20ft

Overall

26811

Females

11553

F40-44

11553

40K→25.2M

24.9 - 25.2 mi

Top 95%
×1story
+13ft-16ft

Overall

26954

Females

11639

F40-44

11639

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2stories
+22ft-21ft

Overall

25459

Females

10891

F40-44

10891

Passing Analysis

Category:
Athletes Passed
181
Passed By
8407
Net Change
-8226
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17616
5K → 10K141981-1967#17616#19583
10K → 15K152001-1986#19583#21569
15K → 20K121675-1663#21569#23232
20K → Half6183-177#23232#23409
Half → 25K23605-582#23409#23991
25K → 30K18763-745#23991#24736
30K → 20M19230-211#24736#24947
20M → 21M5318-313#24947#25260
21M → 35K7141-134#25260#25394
35K → 23M5246-241#25394#25635
23M → 24M13108-95#25635#25730
24M → 40K1487-73#25730#25803
40K → 25.2M847-39#25803#25842
25.2M → Finish22220#25842#25842
TOTALS1818407-8226
📊

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