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BOSTON MARATHON 2025

Jeanette Yamashiro

Bib: 17966•F

HI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 45%
Gender (Female)
#0 / 12228
Top 30%
Masters (Masters Women)
#0 / 6759
Top 15%
Division (F40-44)
#0 / 1718
Top 31%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:38/mi
23:44
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
47:41
↑ 79↓ 1380.4%
15K· 9.32 mi
7:43/mi
1:11:38
↑ 67↓ 78
20K· 12.43 mi
7:48/mi
1:35:52
↑ 106↓ 860.1%
Half· 13.11 mi
7:42/mi
1:41:07
↑ 19↓ 370.5%
25K· 15.53 mi
7:48/mi
2:00:02
↑ 66↓ 880.2%
30K· 18.64 mi
8:04/mi
2:25:06
↑ 181↓ 1480.2%
20M
8:07/mi
2:36:08
↑ 64↓ 500.2%
21M
8:51/mi
2:44:59
↑ 106↓ 241.6%
35K· 21.75 mi
8:12/mi
2:51:07
↑ 17↓ 861.7%
23M
8:26/mi
3:01:41
↑ 23↓ 630.6%
24M
8:13/mi
3:09:54
↓ 821.3%
40K· 24.85 mi
8:29/mi
3:17:09
↓ 200.3%
25.2M
9:05/mi
3:20:17
↑ 13↓ 160.2%
Finish· 26.22 mi
8:15/mi
3:28:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:07
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:47:34
Pace8:12 /mi
📊Positive Split: 6.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:3223:447:3823:44
7:38
-
10K
6.21 mi11:40:2947:417:4023:57
7:43
+0:05
15K
9.32 mi12:04:261:11:387:4123:57
7:43
0:00
20K
12.43 mi12:28:401:35:527:4324:14
7:48
+0:05
Half
13.11 mi12:33:551:41:077:435:15
7:42
-0:06
25K
15.53 mi12:52:502:00:027:4418:55
7:48
+0:06
30K
18.64 mi13:17:542:25:067:4725:04
8:04
+0:16
20M
20.00 mi13:28:562:36:087:4811:02
8:07
+0:03
21M
21.00 mi13:37:472:44:597:518:51
8:51
+0:44
35K
21.75 mi13:43:552:51:077:526:08
8:12
-0:39
23M
23.00 mi13:54:293:01:417:5410:34
8:26
+0:14
24M
24.00 mi14:02:423:09:547:558:13
8:13
-0:13
40K
24.85 mi14:09:573:17:097:567:15
8:29
+0:16
25.2M
25.20 mi14:13:053:20:177:573:08
9:05
+0:36
Finish
26.22 mi14:21:293:28:417:588:24
8:15
-0:50

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

7:38 /mi

Average Pace

7:58 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:58:53

86% of race

Time at Steady Pace

26:40

13% of race

Time at Slower Pace

3:08

2% of race

Average Pace: 7:58 /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 mi11:16:3223:447:3823:44
7:38
#13407
10K
6.21 mi11:40:2947:417:4023:57
7:43
#13692
15K
9.32 mi12:04:261:11:387:4123:57
7:43
#13611
20K
12.43 mi12:28:401:35:527:4324:14
7:48
#13485
Half
13.11 mi12:33:551:41:077:435:15
7:42
#13472
25K
15.53 mi12:52:502:00:027:4418:55
7:48
#13246
30K
18.64 mi13:17:542:25:067:4725:04
8:04
#12925
20M
20.00 mi13:28:562:36:087:4811:02
8:07
#12784
21M
21.00 mi13:37:472:44:597:518:51
8:51
#12745
35K
21.75 mi13:43:552:51:077:526:08
8:12
#12786
23M
23.00 mi13:54:293:01:417:5410:34
8:26
#12752
24M
24.00 mi14:02:423:09:547:558:13
8:13
#12732
40K
24.85 mi14:09:573:17:097:567:15
8:29
#12750
25.2M
25.20 mi14:13:053:20:177:573:08
9:05
#12739
Finish
26.22 mi14:21:293:28:417:588:24
8:15
#12806
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi134073556355613561(Top 48%)3772(Top 31%)3772(Top 220%)
10K6.21 mi3.10 mi13692-2853763-2073763-20713950(Top 49%)3937(Top 32%)3937(Top 229%)
15K9.32 mi3.11 mi13611+813751+123751+1213561(Top 48%)3772(Top 31%)3772(Top 220%)
20K12.43 mi3.11 mi13485+1263720+313720+3113249(Top 47%)3688(Top 30%)3688(Top 215%)
Half13.11 mi0.68 mi13472+133716+43716+413265(Top 47%)3661(Top 30%)3661(Top 213%)
25K15.53 mi2.42 mi13246+2263627+893627+8912341(Top 43%)3307(Top 27%)3307(Top 192%)
30K18.64 mi3.11 mi12925+3213507+1203507+12011848(Top 42%)3223(Top 26%)3223(Top 188%)
20M20.00 mi1.36 mi12784+1413461+463461+4611205(Top 39%)3052(Top 25%)3052(Top 178%)
21M21.00 mi1.00 mi12745+393474-133474-1312574(Top 44%)3920(Top 32%)3920(Top 228%)
35K21.75 mi0.75 mi12786-413514-403514-4013541(Top 48%)4470(Top 37%)4470(Top 260%)
23M23.00 mi1.25 mi12752+343531-173531-1712887(Top 45%)4218(Top 34%)4218(Top 246%)
24M24.00 mi1.00 mi12732+203544-133544-1312628(Top 44%)4138(Top 34%)4138(Top 241%)
40K24.85 mi0.85 mi12750-183591-473591-4713247(Top 47%)4588(Top 38%)4588(Top 267%)
25.2M25.20 mi0.35 mi12739+113594-33594-312145(Top 43%)4081(Top 33%)4081(Top 238%)
Finish26.22 mi1.02 mi12806-673656-623656-6214498(Top 51%)5220(Top 43%)5220(Top 304%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21story building
+97ft-345ft

Overall

13561

Females

3772

F40-44

3772

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13950

Females

3937

F40-44

3937

10K→15K

6.2 - 9.3 mi

Top 48%
×3story building
+67ft-78ft

Overall

13561

Females

3772

F40-44

3772

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

13249

Females

3688

F40-44

3688

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13265

Females

3661

F40-44

3661

Half→25K

13.1 - 15.5 mi

Top 43%
×4story building
+66ft-88ft

Overall

12341

Females

3307

F40-44

3307

25K→30K

15.5 - 18.6 mi

Top 42%
×9story building
+181ft-148ft

Overall

11848

Females

3223

F40-44

3223

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

11205

Females

3052

F40-44

3052

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12574

Females

3920

F40-44

3920

21M→35K

21.0 - 21.8 mi

Top 48%
×7story building
+17ft-86ft

Overall

13541

Females

4470

F40-44

4470

35K→23M

21.8 - 23.0 mi

Top 45%
×5story building
+23ft-63ft

Overall

12887

Females

4218

F40-44

4218

23M→24M

23.0 - 24.0 mi

Top 44%
×6story building
+12ft-82ft

Overall

12628

Females

4138

F40-44

4138

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

13247

Females

4588

F40-44

4588

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

12145

Females

4081

F40-44

4081

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14498

Females

5220

F40-44

5220

Passing Analysis

Category:
Athletes Passed
2144
Passed By
1543
Net Change
+601
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13407
5K → 10K179464-285#13407#13692
10K → 15K254173+81#13692#13611
15K → 20K245119+126#13611#13485
20K → Half4431+13#13485#13472
Half → 25K28458+226#13472#13246
25K → 30K39776+321#13246#12925
30K → 20M19352+141#12925#12784
20M → 21M12990+39#12784#12745
21M → 35K4788-41#12745#12786
35K → 23M12389+34#12786#12752
23M → 24M8565+20#12752#12732
24M → 40K7492-18#12732#12750
40K → 25.2M3625+11#12750#12739
25.2M → Finish54121-67#12739#12806
TOTALS21441543+601
📊

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