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BOSTON MARATHON 2026

Mika Nakamura

Bib: 11070 F JP

0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 20%
Gender (Female)
#0 / 12578
Top 5%
Masters (Masters Women)
#0 / 6862
Top 1.0%
Division (F50-54)
#0 / 1233
Top 0.6%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:25/mi
19:54
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:26/mi
39:52
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:27/mi
59:53
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:42/mi
1:20:39
↑ 106↓ 860.1%
165 ft elev
HALF· 13.11 mi
6:28/mi
1:25:03
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:00/mi
1:42:00
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:21/mi
2:04:50
↑ 181↓ 1480.2%
138 ft elev
20M
7:38/mi
2:15:11
↑ 64↓ 500.2%
148 ft elev
21M
8:25/mi
2:23:36
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:31/mi
2:28:28
↑ 17↓ 861.7%
156 ft elev
23M
6:55/mi
2:37:07
↑ 23↓ 630.6%
116 ft elev
24M
6:42/mi
2:43:49
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:09/mi
2:49:55
↓ 200.3%
20 ft elev
25.2M
7:53/mi
2:52:38
↑ 13↓ 160.2%
18 ft elev
FINISH· 26.22 mi
6:49/mi
2:59:34
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via HALF
1:25:036:30 /mi⚡ faster
2nd Half
1:34:317:13 /mi+11.1%
Positive split — 11.1% slower in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
19:546:253.11 mi19:54
6:25
-
10K
39:526:253.10 mi19:58
6:26
+0:01
15K
59:536:263.11 mi20:01
6:27
+0:01
20K
1:20:396:303.11 mi20:46
6:42
+0:15
HALF(13.11 mi)
1:25:036:300.68 mi4:24
6:28
-0:14
25K
1:42:006:342.42 mi16:57
7:00
+0:32
30K
2:04:506:423.11 mi22:50
7:21
+0:21
20M
2:15:116:461.36 mi10:21
7:38
+0:17
21M
2:23:366:511.00 mi8:25
8:25
+0:47
35K
2:28:286:500.75 mi4:52
6:31
-1:54
23M
2:37:076:501.25 mi8:39
6:55
+0:24
24M
2:43:496:501.00 mi6:42
6:42
-0:13
40K
2:49:556:510.85 mi6:06
7:09
+0:27
25.2M
2:52:386:520.35 mi2:43
7:53
+0:44
FINISH(26.22 mi)
2:59:346:521.02 mi6:56
6:49
-1:04
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

6:25 /mi

Average Pace

6:51 /mi

Slowest Pace

8:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:09:09

39% of race

Time at Steady Pace

1:00:00

33% of race

Time at Slower Pace

50:25

28% of race

Average Pace: 6:51 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi35231681683819181181
10K3.10 mi3601-78164+4164+43715178178
15K3.11 mi3660-59167-3167-33819181181
20K3.11 mi3983-323188-21188-215090376376
HALF(13.11 mi)0.68 mi3991-8191-3191-34176227227
25K2.42 mi4424-433254-63254-637342975975
30K3.11 mi5049-625361-107361-107849815891589
20M1.36 mi5470-421457-96457-96998523732373
21M1.00 mi5927-457583-126583-1261259138213821
35K0.75 mi5816+111570+13570+133672299299
23M1.25 mi5697+119546+24546+244875566566
24M1.00 mi5619+78545+1545+14495533533
40K0.85 mi5628-9550-5550-5635511091109
25.2M0.35 mi5663-35564-14564-14759816481648
FINISH(26.22 mi)1.02 mi5702-39579-15579-15617311601160

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21story building
+97ft-345ft

Overall

3819

Females

181

F50-54

181

5K→10K

3.1 - 6.2 mi

Top 13%
×5story building
+79ft-138ft

Overall

3715

Females

178

F50-54

178

10K→15K

6.2 - 9.3 mi

Top 13%
×3story building
+67ft-78ft

Overall

3819

Females

181

F50-54

181

15K→20K

9.3 - 12.4 mi

Top 18%
×5story building
+106ft-86ft

Overall

5090

Females

376

F50-54

376

20K→HALF

12.4 - 13.1 mi

Top 14%
×2story building
+19ft-37ft

Overall

4176

Females

227

F50-54

227

HALF→25K

13.1 - 15.5 mi

Top 25%
×4story building
+66ft-88ft

Overall

7342

Females

975

F50-54

975

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

8498

Females

1589

F50-54

1589

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9985

Females

2373

F50-54

2373

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

12591

Females

3821

F50-54

3821

21M→35K

21.0 - 21.8 mi

Top 13%
×7story building
+17ft-86ft

Overall

3672

Females

299

F50-54

299

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4875

Females

566

F50-54

566

23M→24M

23.0 - 24.0 mi

Top 15%
×6story building
+12ft-82ft

Overall

4495

Females

533

F50-54

533

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6355

Females

1109

F50-54

1109

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7598

Females

1648

F50-54

1648

25.2M→FINISH

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

6173

Females

1160

F50-54

1160

Passing Analysis

Category:
▼Net Change
0
0 passed by0 passed
SegmentMovementRank
Start → 5K-#3523
5K → 10K
194116-78
#3523 → #3601
10K → 15K
11657-59
#3601 → #3660
15K → 20K
34724-323
#3660 → #3983
20K → HALF
2315-8
#3983 → #3991
HALF → 25K
45522-433
#3991 → #4424
25K → 30K
65328-625
#4424 → #5049
30K → 20M
43514-421
#5049 → #5470
20M → 21M
4669-457
#5470 → #5927
21M → 35K
2113+111
#5927 → #5816
35K → 23M
33152+119
#5816 → #5697
23M → 24M
1997+78
#5697 → #5619
24M → 40K
6152-9
#5619 → #5628
40K → 25.2M
4914-35
#5628 → #5663
25.2M → FINISH
8546-39
#5663 → #5702
TOTALS
2938759-2179
#3523 → #5702

Passing Visualized

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