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BOSTON MARATHON 2025

Kana Numata

Bib: 1820•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 5%
Gender (Female)
#0 / 12228
Top 0.6%
Division (F18-39)
#0 / 5469
Top 1%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:00
Rank: #610
Start → 5K
18:00 | 5:48/mi
10K· 6.21 mi
36:31
Rank: #746 (-136)
5K → 10K
18:31 | 5:58/mi
15K· 9.32 mi
55:15
Rank: #866 (-120)
10K → 15K
18:44 | 6:02/mi
20K· 12.43 mi
1:14:18
Rank: #939 (-73)
15K → 20K
19:03 | 6:08/mi
Half· 13.11 mi
1:18:28
Rank: #964 (-25)
20K → Half
4:10 | 6:06/mi
25K· 15.53 mi
1:33:37
Rank: #1027 (-63)
Half → 25K
15:09 | 6:15/mi
30K· 18.64 mi
1:53:30
Rank: #1089 (-62)
25K → 30K
19:53 | 6:24/mi
20M
2:02:30
Rank: #1133 (-44)
30K → 20M
9:00 | 6:37/mi
21M
2:09:35
Rank: #1182 (-49)
20M → 21M
7:05 | 7:05/mi
35K· 21.75 mi
2:14:17
Rank: #1177 (+5)
21M → 35K
4:42 | 6:17/mi
23M
2:22:43
Rank: #1188 (-11)
35K → 23M
8:26 | 6:44/mi
24M
2:29:11
Rank: #1200 (-12)
23M → 24M
6:28 | 6:28/mi
40K· 24.85 mi
2:34:56
Rank: #1227 (-27)
24M → 40K
5:45 | 6:44/mi
25.2M
2:37:31
Rank: #1237 (-10)
40K → 25.2M
2:35 | 7:29/mi
Finish· 26.22 mi
2:44:13
Rank: #1284 (-47)
25.2M → Finish
6:42 | 6:34/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:18:28
Pace5:59 /mi
2nd Half
Distance13.11 mi
Time1:25:45
Pace6:32 /mi
📊Positive Split: 9.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:1418:005:4818:00
5:48
-
10K
6.21 mi10:36:4536:315:5318:31
5:58
+0:10
15K
9.32 mi10:55:2955:155:5618:44
6:02
+0:04
20K
12.43 mi11:14:321:14:185:5919:03
6:08
+0:06
Half
13.11 mi11:18:421:18:285:594:10
6:06
-0:02
25K
15.53 mi11:33:511:33:376:0215:09
6:15
+0:09
30K
18.64 mi11:53:441:53:306:0519:53
6:24
+0:09
20M
20.00 mi12:02:442:02:306:079:00
6:37
+0:13
21M
21.00 mi12:09:492:09:356:107:05
7:05
+0:28
35K
21.75 mi12:14:312:14:176:104:42
6:17
-0:48
23M
23.00 mi12:22:572:22:436:128:26
6:44
+0:27
24M
24.00 mi12:29:252:29:116:136:28
6:28
-0:16
40K
24.85 mi12:35:102:34:566:145:45
6:44
+0:16
25.2M
25.20 mi12:37:452:37:316:152:35
7:29
+0:45
Finish
26.22 mi12:44:272:44:136:166:42
6:34
-0:55

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

5:48 /mi

Average Pace

6:16 /mi

Slowest Pace

7:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:18:28

48% of race

Time at Steady Pace

52:54

32% of race

Time at Slower Pace

32:51

20% of race

Average Pace: 6:16 /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 mi10:18:1418:005:4818:00
5:48
#610
10K
6.21 mi10:36:4536:315:5318:31
5:58
#746
15K
9.32 mi10:55:2955:155:5618:44
6:02
#866
20K
12.43 mi11:14:321:14:185:5919:03
6:08
#939
Half
13.11 mi11:18:421:18:285:594:10
6:06
#964
25K
15.53 mi11:33:511:33:376:0215:09
6:15
#1027
30K
18.64 mi11:53:441:53:306:0519:53
6:24
#1089
20M
20.00 mi12:02:442:02:306:079:00
6:37
#1133
21M
21.00 mi12:09:492:09:356:107:05
7:05
#1182
35K
21.75 mi12:14:312:14:176:104:42
6:17
#1177
23M
23.00 mi12:22:572:22:436:128:26
6:44
#1188
24M
24.00 mi12:29:252:29:116:136:28
6:28
#1200
40K
24.85 mi12:35:102:34:566:145:45
6:44
#1227
25.2M
25.20 mi12:37:452:37:316:152:35
7:29
#1237
Finish
26.22 mi12:44:272:44:136:166:42
6:34
#1284
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi61042421136(Top 4%)57(Top 0.5%)57(Top 1%)
10K6.21 mi3.10 mi746-13647-547-51000(Top 4%)53(Top 0.4%)53(Top 1.0%)
15K9.32 mi3.11 mi866-12049-249-21136(Top 4%)57(Top 0.5%)57(Top 1%)
20K12.43 mi3.11 mi939-7352-352-31292(Top 5%)62(Top 0.5%)62(Top 1%)
Half13.11 mi0.68 mi964-2552521604(Top 6%)73(Top 0.6%)73(Top 1%)
25K15.53 mi2.42 mi1027-6357-557-51656(Top 6%)76(Top 0.6%)76(Top 1%)
30K18.64 mi3.11 mi1089-6258-158-11562(Top 5%)76(Top 0.6%)76(Top 1%)
20M20.00 mi1.36 mi1133-4459-159-12148(Top 8%)109(Top 0.9%)109(Top 2%)
21M21.00 mi1.00 mi1182-4963-463-42634(Top 9%)170(Top 1%)170(Top 3%)
35K21.75 mi0.75 mi1177+564-164-11574(Top 6%)88(Top 0.7%)88(Top 2%)
23M23.00 mi1.25 mi1188-1163+163+12430(Top 9%)166(Top 1%)166(Top 3%)
24M24.00 mi1.00 mi1200-1264-164-11936(Top 7%)131(Top 1%)131(Top 2%)
40K24.85 mi0.85 mi1227-2767-367-32529(Top 9%)209(Top 2%)209(Top 4%)
25.2M25.20 mi0.35 mi1237-1068-168-13433(Top 12%)400(Top 3%)400(Top 7%)
Finish26.22 mi1.02 mi1284-4769-169-13225(Top 11%)358(Top 3%)358(Top 7%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1136

Females

57

F18-39

57

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1000

Females

53

F18-39

53

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1136

Females

57

F18-39

57

15K→20K

9.3 - 12.4 mi

Top 5%
×5stories
+106ft-86ft

Overall

1292

Females

62

F18-39

62

20K→Half

12.4 - 13.1 mi

Top 6%
×2stories
+19ft-37ft

Overall

1604

Females

73

F18-39

73

Half→25K

13.1 - 15.5 mi

Top 6%
×4stories
+66ft-88ft

Overall

1656

Females

76

F18-39

76

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1562

Females

76

F18-39

76

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2148

Females

109

F18-39

109

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2634

Females

170

F18-39

170

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1574

Females

88

F18-39

88

35K→23M

21.8 - 23.0 mi

Top 9%
×5stories
+23ft-63ft

Overall

2430

Females

166

F18-39

166

23M→24M

23.0 - 24.0 mi

Top 7%
×6stories
+12ft-82ft

Overall

1936

Females

131

F18-39

131

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2529

Females

209

F18-39

209

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3433

Females

400

F18-39

400

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3225

Females

358

F18-39

358

Passing Analysis

Category:
Athletes Passed
200
Passed By
874
Net Change
-674
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#610
5K → 10K5141-136#610#746
10K → 15K4124-120#746#866
15K → 20K1588-73#866#939
20K → Half126-25#939#964
Half → 25K1578-63#964#1027
25K → 30K3193-62#1027#1089
30K → 20M2064-44#1089#1133
20M → 21M1463-49#1133#1182
21M → 35K1813+5#1182#1177
35K → 23M3243-11#1177#1188
23M → 24M1729-12#1188#1200
24M → 40K1340-27#1200#1227
40K → 25.2M515-10#1227#1237
25.2M → Finish1057-47#1237#1284
TOTALS200874-674
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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