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BOSTON MARATHON 2025

Naoe Osako

Bib: 25069•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
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
9:04/mi
28:10
↑ 97↓ 3451.5%
10K· 6.21 mi
9:02/mi
56:15
↑ 79↓ 1380.4%
15K· 9.32 mi
9:11/mi
1:24:47
↑ 67↓ 78
20K· 12.43 mi
9:36/mi
1:54:37
↑ 106↓ 860.1%
Half· 13.11 mi
9:43/mi
2:01:15
↑ 19↓ 370.5%
25K· 15.53 mi
10:15/mi
2:26:06
↑ 66↓ 880.2%
30K· 18.64 mi
10:59/mi
3:00:12
↑ 181↓ 1480.2%
20M
11:39/mi
3:16:02
↑ 64↓ 500.2%
21M
14:26/mi
3:30:28
↑ 106↓ 241.6%
35K· 21.75 mi
12:21/mi
3:39:42
↑ 17↓ 861.7%
23M
11:59/mi
3:54:42
↑ 23↓ 630.6%
24M
12:06/mi
4:06:48
↓ 821.3%
40K· 24.85 mi
11:34/mi
4:16:41
↓ 200.3%
25.2M
12:31/mi
4:21:00
↑ 13↓ 160.2%
Finish· 26.22 mi
10:43/mi
4:31:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:01:15
Pace9:15 /mi
2nd Half
Distance13.11 mi
Time2:30:40
Pace11:30 /mi
📊Positive Split: 24.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:2128:109:0428:10
9:04
-
10K
6.21 mi11:57:2656:159:0328:05
9:02
-0:02
15K
9.32 mi12:25:581:24:479:0628:32
9:11
+0:09
20K
12.43 mi12:55:481:54:379:1329:50
9:36
+0:25
Half
13.11 mi13:02:262:01:159:156:38
9:43
+0:07
25K
15.53 mi13:27:172:26:069:2424:51
10:15
+0:32
30K
18.64 mi14:01:233:00:129:4034:06
10:59
+0:44
20M
20.00 mi14:17:133:16:029:4815:50
11:39
+0:40
21M
21.00 mi14:31:393:30:2810:0114:26
14:26
+2:47
35K
21.75 mi14:40:533:39:4210:069:14
12:21
-2:05
23M
23.00 mi14:55:533:54:4210:1215:00
11:59
-0:22
24M
24.00 mi15:07:594:06:4810:1712:06
12:06
+0:07
40K
24.85 mi15:17:524:16:4110:209:53
11:34
-0:32
25.2M
25.20 mi15:22:114:21:0010:214:19
12:31
+0:57
Finish
26.22 mi15:33:064:31:5510:2310:55
10:43
-1:48

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

9:02 /mi

Average Pace

10:23 /mi

Slowest Pace

14:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:15

45% of race

Time at Steady Pace

1:35:35

35% of race

Time at Slower Pace

55:05

20% of race

Average Pace: 10:22 /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 mi11:29:2128:109:0428:10
9:04
#22715
10K
6.21 mi11:57:2656:159:0328:05
9:02
#22635
15K
9.32 mi12:25:581:24:479:0628:32
9:11
#22686
20K
12.43 mi12:55:481:54:379:1329:50
9:36
#22883
Half
13.11 mi13:02:262:01:159:156:38
9:43
#22960
25K
15.53 mi13:27:172:26:069:2424:51
10:15
#23134
30K
18.64 mi14:01:233:00:129:4034:06
10:59
#23298
20M
20.00 mi14:17:133:16:029:4815:50
11:39
#23437
21M
21.00 mi14:31:393:30:2810:0114:26
14:26
#23795
35K
21.75 mi14:40:533:39:4210:069:14
12:21
#23933
23M
23.00 mi14:55:533:54:4210:1215:00
11:59
#24014
24M
24.00 mi15:07:594:06:4810:1712:06
12:06
#24134
40K
24.85 mi15:17:524:16:4110:209:53
11:34
#24149
25.2M
25.20 mi15:22:114:21:0010:214:19
12:31
#24158
Finish
26.22 mi15:33:064:31:5510:2310:55
10:43
#24187
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi227159021902122814(Top 80%)9007(Top 74%)9007(Top 1443%)
10K6.21 mi3.10 mi22635+808960+618960+6122563(Top 79%)8904(Top 73%)8904(Top 1427%)
15K9.32 mi3.11 mi22686-518954+68954+622814(Top 80%)9007(Top 74%)9007(Top 1443%)
20K12.43 mi3.11 mi22883-1979060-1069060-10623225(Top 82%)9259(Top 76%)9259(Top 1484%)
Half13.11 mi0.68 mi22960-779103-439103-4324201(Top 85%)9821(Top 80%)9821(Top 1574%)
25K15.53 mi2.42 mi23134-1749213-1109213-11023836(Top 84%)9656(Top 79%)9656(Top 1547%)
30K18.64 mi3.11 mi23298-1649348-1359348-13523969(Top 84%)9851(Top 81%)9851(Top 1579%)
20M20.00 mi1.36 mi23437-1399439-919439-9124795(Top 87%)10357(Top 85%)10357(Top 1660%)
21M21.00 mi1.00 mi23795-3589656-2179656-21726657(Top 94%)11397(Top 93%)11397(Top 1826%)
35K21.75 mi0.75 mi23933-1389747-919747-9126297(Top 93%)11236(Top 92%)11236(Top 1801%)
23M23.00 mi1.25 mi24014-819804-579804-5725097(Top 88%)10654(Top 87%)10654(Top 1707%)
24M24.00 mi1.00 mi24134-1209889-859889-8525795(Top 91%)11027(Top 90%)11027(Top 1767%)
40K24.85 mi0.85 mi24149-159906-179906-1724250(Top 85%)10291(Top 84%)10291(Top 1649%)
25.2M25.20 mi0.35 mi24158-99917-119917-1124271(Top 85%)10299(Top 84%)10299(Top 1650%)
Finish26.22 mi1.02 mi24187-299933-169933-1624768(Top 87%)10542(Top 86%)10542(Top 1689%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21story building
+97ft-345ft

Overall

22814

Females

9007

F60-64

9007

5K→10K

3.1 - 6.2 mi

Top 79%
×5story building
+79ft-138ft

Overall

22563

Females

8904

F60-64

8904

10K→15K

6.2 - 9.3 mi

Top 80%
×3story building
+67ft-78ft

Overall

22814

Females

9007

F60-64

9007

15K→20K

9.3 - 12.4 mi

Top 82%
×5story building
+106ft-86ft

Overall

23225

Females

9259

F60-64

9259

20K→Half

12.4 - 13.1 mi

Top 85%
×2story building
+19ft-37ft

Overall

24201

Females

9821

F60-64

9821

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

23836

Females

9656

F60-64

9656

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

23969

Females

9851

F60-64

9851

30K→20M

18.6 - 20.0 mi

Top 87%
×5story building
+64ft-50ft

Overall

24795

Females

10357

F60-64

10357

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

26657

Females

11397

F60-64

11397

21M→35K

21.0 - 21.8 mi

Top 93%
×7story building
+17ft-86ft

Overall

26297

Females

11236

F60-64

11236

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

25097

Females

10654

F60-64

10654

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

25795

Females

11027

F60-64

11027

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24250

Females

10291

F60-64

10291

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

24271

Females

10299

F60-64

10299

25.2M→Finish

25.2 - 26.2 mi

Top 87%
×2story building
+22ft-21ft

Overall

24768

Females

10542

F60-64

10542

Passing Analysis

Category:
Athletes Passed
978
Passed By
2450
Net Change
-1472
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22715
5K → 10K288208+80#22715#22635
10K → 15K164215-51#22635#22686
15K → 20K125322-197#22686#22883
20K → Half1390-77#22883#22960
Half → 25K77251-174#22960#23134
25K → 30K113277-164#23134#23298
30K → 20M40179-139#23298#23437
20M → 21M12370-358#23437#23795
21M → 35K11149-138#23795#23933
35K → 23M39120-81#23933#24014
23M → 24M17137-120#24014#24134
24M → 40K3752-15#24134#24149
40K → 25.2M1120-9#24149#24158
25.2M → Finish3160-29#24158#24187
TOTALS9782450-1472
📊

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