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BOSTON MARATHON 2026

Tomoko Koda

Bib: 14306•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 29%
Gender (Female)
#0 / 12578
Top 12%
Masters (Masters Women)
#0 / 6862
Top 3%
Division (F60-64)
#0 / 782
Top 0.4%
Race Day Weather
51°/41°F
overcast 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
7:19/mi
22:41
↑ 97↓ 3451.5%
10K· 6.21 mi
7:12/mi
45:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:09/mi
1:07:12
↑ 67↓ 78
20K· 12.43 mi
7:12/mi
1:29:33
↑ 106↓ 860.1%
HALF· 13.11 mi
7:03/mi
1:34:21
↑ 19↓ 370.5%
25K· 15.53 mi
7:08/mi
1:51:37
↑ 66↓ 880.2%
30K· 18.64 mi
7:24/mi
2:14:35
↑ 181↓ 1480.2%
20M
7:23/mi
2:24:36
↑ 64↓ 500.2%
21M
7:52/mi
2:32:28
↑ 106↓ 241.6%
35K· 21.75 mi
6:56/mi
2:37:39
↑ 17↓ 861.7%
23M
7:18/mi
2:46:47
↑ 23↓ 630.6%
24M
6:54/mi
2:53:41
↓ 821.3%
40K· 24.85 mi
7:03/mi
2:59:42
↓ 200.3%
25.2M
7:53/mi
3:02:25
↑ 13↓ 160.2%
FINISH· 26.22 mi
7:02/mi
3:09:35
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HALF⚖️ Balanced
Distance13.11 mi
Time1:34:21
Pace7:12 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:35:14
Pace7:16 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:3522:417:1922:41
7:19
-
10K
6.21 mi11:14:5545:017:1522:20
7:12
-0:07
15K
9.32 mi11:37:061:07:127:1322:11
7:09
-0:03
20K
12.43 mi11:59:271:29:337:1322:21
7:12
+0:03
HALF
13.11 mi12:04:151:34:217:124:48
7:03
-0:09
25K
15.53 mi12:21:311:51:377:1217:16
7:08
+0:05
30K
18.64 mi12:44:292:14:357:1422:58
7:24
+0:16
20M
20.00 mi12:54:302:24:367:1410:01
7:23
-0:01
21M
21.00 mi13:02:222:32:287:167:52
7:52
+0:29
35K
21.75 mi13:07:332:37:397:155:11
6:56
-0:56
23M
23.00 mi13:16:412:46:477:169:08
7:18
+0:22
24M
24.00 mi13:23:352:53:417:156:54
6:54
-0:24
40K
24.85 mi13:29:362:59:427:146:01
7:03
+0:09
25.2M
25.20 mi13:32:193:02:257:152:43
7:53
+0:50
FINISH
26.22 mi13:39:293:09:357:157:10
7:02
-0:51

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

6:54 /mi

Average Pace

7:14 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:00

94% of race

Time at Steady Pace

10:35

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:14 /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 mi10:52:3522:417:1922:41
7:19
#11053
10K
6.21 mi11:14:5545:017:1522:20
7:12
#10614
15K
9.32 mi11:37:061:07:127:1322:11
7:09
#10251
20K
12.43 mi11:59:271:29:337:1322:21
7:12
#9940
HALF
13.11 mi12:04:151:34:217:124:48
7:03
#9880
25K
15.53 mi12:21:311:51:377:1217:16
7:08
#9582
30K
18.64 mi12:44:292:14:357:1422:58
7:24
#9405
20M
20.00 mi12:54:302:24:367:1410:01
7:23
#9268
21M
21.00 mi13:02:222:32:287:167:52
7:52
#9229
35K
21.75 mi13:07:332:37:397:155:11
6:56
#9094
23M
23.00 mi13:16:412:46:477:169:08
7:18
#8950
24M
24.00 mi13:23:352:53:417:156:54
6:54
#8750
40K
24.85 mi13:29:362:59:427:146:01
7:03
#8588
25.2M
25.20 mi13:32:193:02:257:152:43
7:53
#8553
FINISH
26.22 mi13:39:293:09:357:157:10
7:02
#8488
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi11053238723879607(Top 33%)1754(Top 14%)1754(Top 224%)
10K6.21 mi3.10 mi10614+4392198+1892198+18910174(Top 35%)1991(Top 16%)1991(Top 255%)
15K9.32 mi3.11 mi10251+3632044+1542044+1549607(Top 33%)1754(Top 14%)1754(Top 224%)
20K12.43 mi3.11 mi9940+3111912+1321912+1329296(Top 32%)1701(Top 14%)1701(Top 218%)
HALF13.11 mi0.68 mi9880+601882+301882+309052(Top 31%)1535(Top 12%)1535(Top 196%)
25K15.53 mi2.42 mi9582+2981763+1191763+1198286(Top 29%)1354(Top 11%)1354(Top 173%)
30K18.64 mi3.11 mi9405+1771742+211742+218803(Top 30%)1717(Top 14%)1717(Top 220%)
20M20.00 mi1.36 mi9268+1371717+251717+258252(Top 28%)1592(Top 13%)1592(Top 204%)
21M21.00 mi1.00 mi9229+391719-21719-29004(Top 31%)2020(Top 16%)2020(Top 258%)
35K21.75 mi0.75 mi9094+1351677+421677+426638(Top 23%)1048(Top 8%)1048(Top 134%)
23M23.00 mi1.25 mi8950+1441651+261651+267486(Top 26%)1416(Top 11%)1416(Top 181%)
24M24.00 mi1.00 mi8750+2001591+601591+605851(Top 20%)919(Top 7%)919(Top 118%)
40K24.85 mi0.85 mi8588+1621550+411550+415765(Top 20%)926(Top 7%)926(Top 118%)
25.2M25.20 mi0.35 mi8553+351545+51545+57651(Top 26%)1701(Top 14%)1701(Top 218%)
FINISH26.22 mi1.02 mi8488+651551-61551-67865(Top 27%)1856(Top 15%)1856(Top 237%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

9607

Females

1754

F60-64

1754

5K→10K

3.1 - 6.2 mi

Top 35%
×5story building
+79ft-138ft

Overall

10174

Females

1991

F60-64

1991

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

9607

Females

1754

F60-64

1754

15K→20K

9.3 - 12.4 mi

Top 32%
×5story building
+106ft-86ft

Overall

9296

Females

1701

F60-64

1701

20K→HALF

12.4 - 13.1 mi

Top 31%
×2story building
+19ft-37ft

Overall

9052

Females

1535

F60-64

1535

HALF→25K

13.1 - 15.5 mi

Top 29%
×4story building
+66ft-88ft

Overall

8286

Females

1354

F60-64

1354

25K→30K

15.5 - 18.6 mi

Top 30%
×9story building
+181ft-148ft

Overall

8803

Females

1717

F60-64

1717

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

8252

Females

1592

F60-64

1592

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

9004

Females

2020

F60-64

2020

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

6638

Females

1048

F60-64

1048

35K→23M

21.8 - 23.0 mi

Top 26%
×5story building
+23ft-63ft

Overall

7486

Females

1416

F60-64

1416

23M→24M

23.0 - 24.0 mi

Top 20%
×6story building
+12ft-82ft

Overall

5851

Females

919

F60-64

919

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5765

Females

926

F60-64

926

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7651

Females

1701

F60-64

1701

25.2M→FINISH

25.2 - 26.2 mi

Top 27%
×2story building
+22ft-21ft

Overall

7865

Females

1856

F60-64

1856

Passing Analysis

Category:
Athletes Passed
2977*
Passed By
411
Net Change
+2565
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11053
5K → 10K52888+439#11053#10614
10K → 15K40441+363#10614#10251
15K → 20K346*35+311#10251#9940
20K → HALF677+60#9940#9880
HALF → 25K3057+298#9880#9582
25K → 30K24871+177#9582#9405
30K → 20M16629+137#9405#9268
20M → 21M10465+39#9268#9229
21M → 35K1405+135#9229#9094
35K → 23M16218+144#9094#8950
23M → 24M2011+200#8950#8750
24M → 40K1664+162#8750#8588
40K → 25.2M4611+35#8588#8553
25.2M → FINISH9429+65#8553#8488
TOTALS2977*411+2565

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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