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BOSTON MARATHON 2025

Maki Nakayama

Bib: 22931•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 39%
Division (F45-49)
#0 / 1813
Top 49%
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
8:13/mi
25:31
↑ 97↓ 3451.5%
10K· 6.21 mi
8:07/mi
50:44
↑ 79↓ 1380.4%
15K· 9.32 mi
8:11/mi
1:16:10
↑ 67↓ 78
20K· 12.43 mi
8:26/mi
1:42:23
↑ 106↓ 860.1%
Half· 13.11 mi
8:18/mi
1:48:03
↑ 19↓ 370.5%
25K· 15.53 mi
8:30/mi
2:08:39
↑ 66↓ 880.2%
30K· 18.64 mi
8:55/mi
2:36:20
↑ 181↓ 1480.2%
20M
9:04/mi
2:48:39
↑ 64↓ 500.2%
21M
9:47/mi
2:58:26
↑ 106↓ 241.6%
35K· 21.75 mi
8:40/mi
3:04:55
↑ 17↓ 861.7%
23M
9:02/mi
3:16:14
↑ 23↓ 630.6%
24M
8:46/mi
3:25:00
↓ 821.3%
40K· 24.85 mi
9:04/mi
3:32:45
↓ 200.3%
25.2M
10:09/mi
3:36:15
↑ 13↓ 160.2%
Finish· 26.22 mi
8:54/mi
3:45:19
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:03
Pace8:15 /mi
2nd Half
Distance13.11 mi
Time1:57:16
Pace8:57 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:0925:318:1325:31
8:13
-
10K
6.21 mi11:50:2250:448:1025:13
8:07
-0:06
15K
9.32 mi12:15:481:16:108:1025:26
8:11
+0:04
20K
12.43 mi12:42:011:42:238:1426:13
8:26
+0:15
Half
13.11 mi12:47:411:48:038:155:40
8:18
-0:08
25K
15.53 mi13:08:172:08:398:1720:36
8:30
+0:12
30K
18.64 mi13:35:582:36:208:2327:41
8:55
+0:25
20M
20.00 mi13:48:172:48:398:2612:19
9:04
+0:09
21M
21.00 mi13:58:042:58:268:309:47
9:47
+0:43
35K
21.75 mi14:04:333:04:558:306:29
8:40
-1:07
23M
23.00 mi14:15:523:16:148:3211:19
9:02
+0:22
24M
24.00 mi14:24:383:25:008:338:46
8:46
-0:16
40K
24.85 mi14:32:233:32:458:347:45
9:04
+0:18
25.2M
25.20 mi14:35:533:36:158:353:30
10:09
+1:05
Finish
26.22 mi14:44:573:45:198:369:04
8:54
-1:15

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

8:07 /mi

Average Pace

8:36 /mi

Slowest Pace

10:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:03

48% of race

Time at Steady Pace

1:23:55

37% of race

Time at Slower Pace

33:21

15% of race

Average Pace: 8:36 /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 mi11:25:0925:318:1325:31
8:13
#18208
10K
6.21 mi11:50:2250:448:1025:13
8:07
#17735
15K
9.32 mi12:15:481:16:108:1025:26
8:11
#17576
20K
12.43 mi12:42:011:42:238:1426:13
8:26
#17602
Half
13.11 mi12:47:411:48:038:155:40
8:18
#17623
25K
15.53 mi13:08:172:08:398:1720:36
8:30
#17492
30K
18.64 mi13:35:582:36:208:2327:41
8:55
#17387
20M
20.00 mi13:48:172:48:398:2612:19
9:04
#17347
21M
21.00 mi13:58:042:58:268:309:47
9:47
#17346
35K
21.75 mi14:04:333:04:558:306:29
8:40
#17297
23M
23.00 mi14:15:523:16:148:3211:19
9:02
#17238
24M
24.00 mi14:24:383:25:008:338:46
8:46
#17169
40K
24.85 mi14:32:233:32:458:347:45
9:04
#17146
25.2M
25.20 mi14:35:533:36:158:353:30
10:09
#17154
Finish
26.22 mi14:44:573:45:198:369:04
8:54
#17220
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi182086466646617324(Top 61%)5915(Top 48%)5915(Top 326%)
10K6.21 mi3.10 mi17735+4736163+3036163+30317335(Top 61%)5902(Top 48%)5902(Top 326%)
15K9.32 mi3.11 mi17576+1596061+1026061+10217324(Top 61%)5915(Top 48%)5915(Top 326%)
20K12.43 mi3.11 mi17602-266099-386099-3817804(Top 63%)6228(Top 51%)6228(Top 344%)
Half13.11 mi0.68 mi17623-216110-116110-1117993(Top 63%)6310(Top 52%)6310(Top 348%)
25K15.53 mi2.42 mi17492+1316053+576053+5717193(Top 61%)5970(Top 49%)5970(Top 329%)
30K18.64 mi3.11 mi17387+1056052+16052+117218(Top 61%)6144(Top 50%)6144(Top 339%)
20M20.00 mi1.36 mi17347+406053-16053-117154(Top 60%)6225(Top 51%)6225(Top 343%)
21M21.00 mi1.00 mi17346+16086-336086-3317421(Top 61%)6491(Top 53%)6491(Top 358%)
35K21.75 mi0.75 mi17297+496078+86078+816511(Top 58%)6070(Top 50%)6070(Top 335%)
23M23.00 mi1.25 mi17238+596078607816497(Top 58%)6168(Top 50%)6168(Top 340%)
24M24.00 mi1.00 mi17169+696057+216057+2116150(Top 57%)6019(Top 49%)6019(Top 332%)
40K24.85 mi0.85 mi17146+236071-146071-1416712(Top 59%)6430(Top 53%)6430(Top 355%)
25.2M25.20 mi0.35 mi17154-86084-136084-1317715(Top 62%)6967(Top 57%)6967(Top 384%)
Finish26.22 mi1.02 mi17220-666141-576141-5718531(Top 65%)7345(Top 60%)7345(Top 405%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

17324

Females

5915

F45-49

5915

5K→10K

3.1 - 6.2 mi

Top 61%
×5story building
+79ft-138ft

Overall

17335

Females

5902

F45-49

5902

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

17324

Females

5915

F45-49

5915

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

17804

Females

6228

F45-49

6228

20K→Half

12.4 - 13.1 mi

Top 63%
×2story building
+19ft-37ft

Overall

17993

Females

6310

F45-49

6310

Half→25K

13.1 - 15.5 mi

Top 61%
×4story building
+66ft-88ft

Overall

17193

Females

5970

F45-49

5970

25K→30K

15.5 - 18.6 mi

Top 61%
×9story building
+181ft-148ft

Overall

17218

Females

6144

F45-49

6144

30K→20M

18.6 - 20.0 mi

Top 60%
×5story building
+64ft-50ft

Overall

17154

Females

6225

F45-49

6225

20M→21M

20.0 - 21.0 mi

Top 61%
×8story building
+106ft-24ft

Overall

17421

Females

6491

F45-49

6491

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

16511

Females

6070

F45-49

6070

35K→23M

21.8 - 23.0 mi

Top 58%
×5story building
+23ft-63ft

Overall

16497

Females

6168

F45-49

6168

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16150

Females

6019

F45-49

6019

24M→40K

24.0 - 24.9 mi

Top 59%
×1story
+6ft-20ft

Overall

16712

Females

6430

F45-49

6430

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17715

Females

6967

F45-49

6967

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

18531

Females

7345

F45-49

7345

Passing Analysis

Category:
Athletes Passed
2277
Passed By
1289
Net Change
+988
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18208
5K → 10K580107+473#18208#17735
10K → 15K276117+159#17735#17576
15K → 20K185211-26#17576#17602
20K → Half2849-21#17602#17623
Half → 25K22594+131#17623#17492
25K → 30K263158+105#17492#17387
30K → 20M13191+40#17387#17347
20M → 21M9796+1#17347#17346
21M → 35K9041+49#17346#17297
35K → 23M13677+59#17297#17238
23M → 24M11344+69#17238#17169
24M → 40K7451+23#17169#17146
40K → 25.2M2937-8#17146#17154
25.2M → Finish50116-66#17154#17220
TOTALS22771289+988
📊

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