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BOSTON MARATHON 2025

Michiko Nakano

Bib: 24531•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 43%
Division (F60-64)
#0 / 624
Top 11%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:10
Rank: #14644
Start → 5K
7:47/mi
24:10 split
10K· 6.21 mi
48:22
Rank: #14641 (+3)
5K → 10K
7:47/mi
24:12 split
15K· 9.32 mi
1:12:54
Rank: #14828 (-187)
10K → 15K
7:54/mi
24:32 split
20K· 12.43 mi
1:38:17
Rank: #15181 (-353)
15K → 20K
8:10/mi
25:23 split
Half· 13.11 mi
1:43:48
Rank: #15261 (-80)
20K → Half
8:05/mi
5:31 split
25K· 15.53 mi
2:04:45
Rank: #15811 (-550)
Half → 25K
8:38/mi
20:57 split
30K· 18.64 mi
2:36:00
Rank: #17259 (-1448)
25K → 30K
10:04/mi
31:15 split
20M
2:48:57
Rank: #17445 (-186)
30K → 20M
9:32/mi
12:57 split
21M
2:59:25
Rank: #17651 (-206)
20M → 21M
10:28/mi
10:28 split
35K· 21.75 mi
3:05:57
Rank: #17608 (+43)
21M → 35K
8:44/mi
6:32 split
23M
3:17:52
Rank: #17694 (-86)
35K → 23M
9:31/mi
11:55 split
24M
3:26:56
Rank: #17670 (+24)
23M → 24M
9:04/mi
9:04 split
40K· 24.85 mi
3:35:06
Rank: #17725 (-55)
24M → 40K
9:33/mi
8:10 split
25.2M
3:38:44
Rank: #17756 (-31)
40K → 25.2M
10:32/mi
3:38 split
Finish· 26.22 mi
3:48:11
Rank: #17891 (-135)
25.2M → Finish
9:16/mi
9:27 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:48
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time2:04:23
Pace9:29 /mi
📊Positive Split: 19.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:5324:107:4724:10
7:47
-
10K
6.21 mi11:46:0548:227:4724:12
7:47
0:00
15K
9.32 mi12:10:371:12:547:4924:32
7:54
+0:07
20K
12.43 mi12:36:001:38:177:5525:23
8:10
+0:16
Half
13.11 mi12:41:311:43:487:555:31
8:05
-0:05
25K
15.53 mi13:02:282:04:458:0220:57
8:38
+0:33
30K
18.64 mi13:33:432:36:008:2231:15
10:04
+1:26
20M
20.00 mi13:46:402:48:578:2712:57
9:32
-0:32
21M
21.00 mi13:57:082:59:258:3310:28
10:28
+0:56
35K
21.75 mi14:03:403:05:578:336:32
8:44
-1:44
23M
23.00 mi14:15:353:17:528:3611:55
9:31
+0:47
24M
24.00 mi14:24:393:26:568:379:04
9:04
-0:27
40K
24.85 mi14:32:493:35:068:398:10
9:33
+0:29
25.2M
25.20 mi14:36:273:38:448:413:38
10:32
+0:59
Finish
26.22 mi14:45:543:48:118:439:27
9:16
-1:16

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

7:47 /mi

Average Pace

8:43 /mi

Slowest Pace

10:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:48

45% of race

Time at Steady Pace

57:55

25% of race

Time at Slower Pace

1:06:28

29% of race

Average Pace: 8:42 /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 mi11:21:5324:107:4724:10
7:47
#14644
10K
6.21 mi11:46:0548:227:4724:12
7:47
#14641
15K
9.32 mi12:10:371:12:547:4924:32
7:54
#14828
20K
12.43 mi12:36:001:38:177:5525:23
8:10
#15181
Half
13.11 mi12:41:311:43:487:555:31
8:05
#15261
25K
15.53 mi13:02:282:04:458:0220:57
8:38
#15811
30K
18.64 mi13:33:432:36:008:2231:15
10:04
#17259
20M
20.00 mi13:46:402:48:578:2712:57
9:32
#17445
21M
21.00 mi13:57:082:59:258:3310:28
10:28
#17651
35K
21.75 mi14:03:403:05:578:336:32
8:44
#17608
23M
23.00 mi14:15:353:17:528:3611:55
9:31
#17694
24M
24.00 mi14:24:393:26:568:379:04
9:04
#17670
40K
24.85 mi14:32:493:35:068:398:10
9:33
#17725
25.2M
25.20 mi14:36:273:38:448:413:38
10:32
#17756
Finish
26.22 mi14:45:543:48:118:439:27
9:16
#17891
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi146444314431415230(Top 54%)4711(Top 39%)4711(Top 755%)
10K6.21 mi3.10 mi14641+34330-164330-1614727(Top 52%)4384(Top 36%)4384(Top 703%)
15K9.32 mi3.11 mi14828-1874454-1244454-12415230(Top 54%)4711(Top 39%)4711(Top 755%)
20K12.43 mi3.11 mi15181-3534687-2334687-23316128(Top 57%)5293(Top 43%)5293(Top 848%)
Half13.11 mi0.68 mi15261-804732-454732-4516597(Top 58%)5543(Top 45%)5543(Top 888%)
25K15.53 mi2.42 mi15811-5505061-3295061-32918058(Top 64%)6460(Top 53%)6460(Top 1035%)
30K18.64 mi3.11 mi17259-14485969-9085969-90821759(Top 77%)8644(Top 71%)8644(Top 1385%)
20M20.00 mi1.36 mi17445-1866116-1476116-14719317(Top 68%)7428(Top 61%)7428(Top 1190%)
21M21.00 mi1.00 mi17651-2066244-1286244-12819906(Top 70%)7854(Top 64%)7854(Top 1259%)
35K21.75 mi0.75 mi17608+436245-16245-116928(Top 60%)6298(Top 52%)6298(Top 1009%)
23M23.00 mi1.25 mi17694-866326-816326-8118787(Top 66%)7394(Top 60%)7394(Top 1185%)
24M24.00 mi1.00 mi17670+246344-186344-1817715(Top 62%)6881(Top 56%)6881(Top 1103%)
40K24.85 mi0.85 mi17725-556401-576401-5718918(Top 67%)7588(Top 62%)7588(Top 1216%)
25.2M25.20 mi0.35 mi17756-316425-246425-2419162(Top 67%)7717(Top 63%)7717(Top 1237%)
Finish26.22 mi1.02 mi17891-1356512-876512-8720283(Top 71%)8281(Top 68%)8281(Top 1327%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21story building
+97ft-345ft

Overall

15230

Females

4711

F60-64

4711

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

14727

Females

4384

F60-64

4384

10K→15K

6.2 - 9.3 mi

Top 54%
×3story building
+67ft-78ft

Overall

15230

Females

4711

F60-64

4711

15K→20K

9.3 - 12.4 mi

Top 57%
×5story building
+106ft-86ft

Overall

16128

Females

5293

F60-64

5293

20K→Half

12.4 - 13.1 mi

Top 58%
×2story building
+19ft-37ft

Overall

16597

Females

5543

F60-64

5543

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18058

Females

6460

F60-64

6460

25K→30K

15.5 - 18.6 mi

Top 77%
×9story building
+181ft-148ft

Overall

21759

Females

8644

F60-64

8644

30K→20M

18.6 - 20.0 mi

Top 68%
×5story building
+64ft-50ft

Overall

19317

Females

7428

F60-64

7428

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19906

Females

7854

F60-64

7854

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

16928

Females

6298

F60-64

6298

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

18787

Females

7394

F60-64

7394

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17715

Females

6881

F60-64

6881

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

18918

Females

7588

F60-64

7588

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

19162

Females

7717

F60-64

7717

25.2M→Finish

25.2 - 26.2 mi

Top 71%
×2story building
+22ft-21ft

Overall

20283

Females

8281

F60-64

8281

Passing Analysis

Category:
Athletes Passed
1144
Passed By
4391
Net Change
-3247
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14644
5K → 10K298295+3#14644#14641
10K → 15K134321-187#14641#14828
15K → 20K128481-353#14828#15181
20K → Half1999-80#15181#15261
Half → 25K62612-550#15261#15811
25K → 30K321480-1448#15811#17259
30K → 20M64250-186#17259#17445
20M → 21M56262-206#17445#17651
21M → 35K8138+43#17651#17608
35K → 23M84170-86#17608#17694
23M → 24M8662+24#17694#17670
24M → 40K4499-55#17670#17725
40K → 25.2M2556-31#17725#17756
25.2M → Finish31166-135#17756#17891
TOTALS11444391-3247
📊

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