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BOSTON MARATHON 2025

Yumei Guo

Bib: 20413•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 47%
Masters (Masters Women)
#0 / 6759
Top 35%
Division (F55-59)
#0 / 994
Top 15%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:48
Rank: #18749
Start → 5K
8:18/mi
25:48 split
10K· 6.21 mi
51:18
Rank: #18350 (+399)
5K → 10K
8:12/mi
25:30 split
15K· 9.32 mi
1:16:54
Rank: #18112 (+238)
10K → 15K
8:14/mi
25:36 split
20K· 12.43 mi
1:43:08
Rank: #17993 (+119)
15K → 20K
8:27/mi
26:14 split
Half· 13.11 mi
1:48:50
Rank: #17991 (+2)
20K → Half
8:21/mi
5:42 split
25K· 15.53 mi
2:09:34
Rank: #17866 (+125)
Half → 25K
8:33/mi
20:44 split
30K· 18.64 mi
2:36:31
Rank: #17443 (+423)
25K → 30K
8:40/mi
26:57 split
20M
2:48:31
Rank: #17306 (+137)
30K → 20M
8:50/mi
12:00 split
21M
2:57:56
Rank: #17183 (+123)
20M → 21M
9:25/mi
9:25 split
35K· 21.75 mi
3:04:11
Rank: #17062 (+121)
21M → 35K
8:21/mi
6:15 split
23M
3:14:59
Rank: #16865 (+197)
35K → 23M
8:38/mi
10:48 split
24M
3:23:34
Rank: #16778 (+87)
23M → 24M
8:35/mi
8:35 split
40K· 24.85 mi
3:31:02
Rank: #16678 (+100)
24M → 40K
8:44/mi
7:28 split
25.2M
3:34:21
Rank: #16660 (+18)
40K → 25.2M
9:37/mi
3:19 split
Finish· 26.22 mi
3:43:01
Rank: #16629 (+31)
25.2M → Finish
8:30/mi
8:40 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:50
Pace8:18 /mi
2nd Half
Distance13.11 mi
Time1:54:11
Pace8:43 /mi
📊Positive Split: 4.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:24:3725:488:1825:48
8:18
-
10K
6.21 mi11:50:0751:188:1525:30
8:12
-0:06
15K
9.32 mi12:15:431:16:548:1525:36
8:14
+0:02
20K
12.43 mi12:41:571:43:088:1826:14
8:27
+0:13
Half
13.11 mi12:47:391:48:508:185:42
8:21
-0:06
25K
15.53 mi13:08:232:09:348:2020:44
8:33
+0:12
30K
18.64 mi13:35:202:36:318:2426:57
8:40
+0:07
20M
20.00 mi13:47:202:48:318:2612:00
8:50
+0:10
21M
21.00 mi13:56:452:57:568:289:25
9:25
+0:35
35K
21.75 mi14:03:003:04:118:286:15
8:21
-1:04
23M
23.00 mi14:13:483:14:598:2910:48
8:38
+0:17
24M
24.00 mi14:22:233:23:348:298:35
8:35
-0:03
40K
24.85 mi14:29:513:31:028:297:28
8:44
+0:09
25.2M
25.20 mi14:33:103:34:218:303:19
9:37
+0:53
Finish
26.22 mi14:41:503:43:018:318:40
8:30
-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

8:12 /mi

Average Pace

8:31 /mi

Slowest Pace

9:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:30:17

94% of race

Time at Steady Pace

12:44

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:30 /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 mi11:24:3725:488:1825:48
8:18
#18749
10K
6.21 mi11:50:0751:188:1525:30
8:12
#18350
15K
9.32 mi12:15:431:16:548:1525:36
8:14
#18112
20K
12.43 mi12:41:571:43:088:1826:14
8:27
#17993
Half
13.11 mi12:47:391:48:508:185:42
8:21
#17991
25K
15.53 mi13:08:232:09:348:2020:44
8:33
#17866
30K
18.64 mi13:35:202:36:318:2426:57
8:40
#17443
20M
20.00 mi13:47:202:48:318:2612:00
8:50
#17306
21M
21.00 mi13:56:452:57:568:289:25
9:25
#17183
35K
21.75 mi14:03:003:04:118:286:15
8:21
#17062
23M
23.00 mi14:13:483:14:598:2910:48
8:38
#16865
24M
24.00 mi14:22:233:23:348:298:35
8:35
#16778
40K
24.85 mi14:29:513:31:028:297:28
8:44
#16678
25.2M
25.20 mi14:33:103:34:218:303:19
9:37
#16660
Finish
26.22 mi14:41:503:43:018:318:40
8:30
#16629
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi187496767676717663(Top 62%)6117(Top 50%)6117(Top 615%)
10K6.21 mi3.10 mi18350+3996533+2346533+23417956(Top 63%)6265(Top 51%)6265(Top 630%)
15K9.32 mi3.11 mi18112+2386395+1386395+13817663(Top 62%)6117(Top 50%)6117(Top 615%)
20K12.43 mi3.11 mi17993+1196331+646331+6417835(Top 63%)6248(Top 51%)6248(Top 629%)
Half13.11 mi0.68 mi17991+26331633118310(Top 64%)6487(Top 53%)6487(Top 653%)
25K15.53 mi2.42 mi17866+1256279+526279+5217496(Top 62%)6133(Top 50%)6133(Top 617%)
30K18.64 mi3.11 mi17443+4236081+1986081+19815860(Top 56%)5378(Top 44%)5378(Top 541%)
20M20.00 mi1.36 mi17306+1376030+516030+5115865(Top 56%)5512(Top 45%)5512(Top 555%)
21M21.00 mi1.00 mi17183+1235982+485982+4815730(Top 55%)5570(Top 46%)5570(Top 560%)
35K21.75 mi0.75 mi17062+1215943+395943+3914659(Top 52%)5062(Top 41%)5062(Top 509%)
23M23.00 mi1.25 mi16865+1975853+905853+9014127(Top 50%)4871(Top 40%)4871(Top 490%)
24M24.00 mi1.00 mi16778+875828+255828+2515096(Top 53%)5437(Top 44%)5437(Top 547%)
40K24.85 mi0.85 mi16678+1005800+285800+2814846(Top 52%)5443(Top 45%)5443(Top 548%)
25.2M25.20 mi0.35 mi16660+185799+15799+115241(Top 54%)5682(Top 46%)5682(Top 572%)
Finish26.22 mi1.02 mi16629+315805-65805-616269(Top 57%)6173(Top 50%)6173(Top 621%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21story building
+97ft-345ft

Overall

17663

Females

6117

F55-59

6117

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

17956

Females

6265

F55-59

6265

10K→15K

6.2 - 9.3 mi

Top 62%
×3story building
+67ft-78ft

Overall

17663

Females

6117

F55-59

6117

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

17835

Females

6248

F55-59

6248

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

18310

Females

6487

F55-59

6487

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

17496

Females

6133

F55-59

6133

25K→30K

15.5 - 18.6 mi

Top 56%
×9story building
+181ft-148ft

Overall

15860

Females

5378

F55-59

5378

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

15865

Females

5512

F55-59

5512

20M→21M

20.0 - 21.0 mi

Top 55%
×8story building
+106ft-24ft

Overall

15730

Females

5570

F55-59

5570

21M→35K

21.0 - 21.8 mi

Top 52%
×7story building
+17ft-86ft

Overall

14659

Females

5062

F55-59

5062

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

14127

Females

4871

F55-59

4871

23M→24M

23.0 - 24.0 mi

Top 53%
×6story building
+12ft-82ft

Overall

15096

Females

5437

F55-59

5437

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14846

Females

5443

F55-59

5443

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

15241

Females

5682

F55-59

5682

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16269

Females

6173

F55-59

6173

Passing Analysis

Category:
Athletes Passed
2886
Passed By
766
Net Change
+2120
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18749
5K → 10K516117+399#18749#18350
10K → 15K31678+238#18350#18112
15K → 20K248129+119#18112#17993
20K → Half3836+2#17993#17991
Half → 25K22095+125#17991#17866
25K → 30K46643+423#17866#17443
30K → 20M17942+137#17443#17306
20M → 21M16845+123#17306#17183
21M → 35K13514+121#17183#17062
35K → 23M22023+197#17062#16865
23M → 24M11932+87#16865#16778
24M → 40K13131+100#16778#16678
40K → 25.2M3719+18#16678#16660
25.2M → Finish9362+31#16660#16629
TOTALS2886766+2120
📊

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