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BOSTON MARATHON 2025

Junko Kondo

Bib: 17664•F

WA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:26
Rank: #12637
Start → 5K
23:26 | 7:33/mi
10K· 6.21 mi
48:06
Rank: #14265 (-1628)
5K → 10K
24:40 | 7:56/mi
15K· 9.32 mi
1:14:46
Rank: #16499 (-2234)
10K → 15K
26:40 | 8:35/mi
20K· 12.43 mi
1:45:18
Rank: #19106 (-2607)
15K → 20K
30:32 | 9:50/mi
Half· 13.11 mi
1:52:10
Rank: #19618 (-512)
20K → Half
6:52 | 10:04/mi
25K· 15.53 mi
2:18:28
Rank: #21170 (-1552)
Half → 25K
26:18 | 10:51/mi
30K· 18.64 mi
2:56:32
Rank: #22726 (-1556)
25K → 30K
38:04 | 12:15/mi
20M
3:13:58
Rank: #23146 (-420)
30K → 20M
17:26 | 12:50/mi
21M
3:26:42
Rank: #23274 (-128)
20M → 21M
12:44 | 12:44/mi
35K· 21.75 mi
3:35:57
Rank: #23429 (-155)
21M → 35K
9:15 | 12:22/mi
23M
3:50:59
Rank: #23591 (-162)
35K → 23M
15:02 | 12:00/mi
24M
4:02:16
Rank: #23652 (-61)
23M → 24M
11:17 | 11:17/mi
40K· 24.85 mi
4:11:39
Rank: #23650 (+2)
24M → 40K
9:23 | 10:58/mi
25.2M
4:15:16
Rank: #23578 (+72)
40K → 25.2M
3:37 | 10:29/mi
Finish· 26.22 mi
4:24:14
Rank: #23419 (+159)
25.2M → Finish
8:58 | 8:48/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:10
Pace8:33 /mi
2nd Half
Distance13.11 mi
Time2:32:04
Pace11:36 /mi
📊Positive Split: 35.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:3023:267:3323:26
7:33
-
10K
6.21 mi11:38:1048:067:4424:40
7:56
+0:23
15K
9.32 mi12:04:501:14:468:0126:40
8:35
+0:39
20K
12.43 mi12:35:221:45:188:2830:32
9:50
+1:15
Half
13.11 mi12:42:141:52:108:336:52
10:04
+0:14
25K
15.53 mi13:08:322:18:288:5526:18
10:51
+0:47
30K
18.64 mi13:46:362:56:329:2838:04
12:15
+1:24
20M
20.00 mi14:04:023:13:589:4217:26
12:50
+0:35
21M
21.00 mi14:16:463:26:429:5112:44
12:44
-0:06
35K
21.75 mi14:26:013:35:579:569:15
12:22
-0:22
23M
23.00 mi14:41:033:50:5910:0315:02
12:00
-0:22
24M
24.00 mi14:52:204:02:1610:0611:17
11:17
-0:43
40K
24.85 mi15:01:434:11:3910:079:23
10:58
-0:19
25.2M
25.20 mi15:05:204:15:1610:083:37
10:29
-0:29
Finish
26.22 mi15:14:184:24:1410:058:58
8:48
-1:41

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

7:33 /mi

Average Pace

10:05 /mi

Slowest Pace

12:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:16

43% of race

Time at Steady Pace

57:27

22% of race

Time at Slower Pace

1:32:31

35% of race

Average Pace: 10:05 /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 mi11:13:3023:267:3323:26
7:33
#12637
10K
6.21 mi11:38:1048:067:4424:40
7:56
#14265
15K
9.32 mi12:04:501:14:468:0126:40
8:35
#16499
20K
12.43 mi12:35:221:45:188:2830:32
9:50
#19106
Half
13.11 mi12:42:141:52:108:336:52
10:04
#19618
25K
15.53 mi13:08:322:18:288:5526:18
10:51
#21170
30K
18.64 mi13:46:362:56:329:2838:04
12:15
#22726
20M
20.00 mi14:04:023:13:589:4217:26
12:50
#23146
21M
21.00 mi14:16:463:26:429:5112:44
12:44
#23274
35K
21.75 mi14:26:013:35:579:569:15
12:22
#23429
23M
23.00 mi14:41:033:50:5910:0315:02
12:00
#23591
24M
24.00 mi14:52:204:02:1610:0611:17
11:17
#23652
40K
24.85 mi15:01:434:11:3910:079:23
10:58
#23650
25.2M
25.20 mi15:05:204:15:1610:083:37
10:29
#23578
Finish
26.22 mi15:14:184:24:1410:058:58
8:48
#23419
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi126373133313319850(Top 70%)7366(Top 60%)7366(Top 135%)
10K6.21 mi3.10 mi14265-16284098-9654098-96516007(Top 56%)5130(Top 42%)5130(Top 94%)
15K9.32 mi3.11 mi16499-22345435-13375435-133719850(Top 70%)7366(Top 60%)7366(Top 135%)
20K12.43 mi3.11 mi19106-26076963-15286963-152823837(Top 84%)9623(Top 79%)9623(Top 176%)
Half13.11 mi0.68 mi19618-5127259-2967259-29624970(Top 88%)10240(Top 84%)10240(Top 187%)
25K15.53 mi2.42 mi21170-15528137-8788137-87824980(Top 88%)10275(Top 84%)10275(Top 188%)
30K18.64 mi3.11 mi22726-15569029-8929029-89225888(Top 91%)10882(Top 89%)10882(Top 199%)
20M20.00 mi1.36 mi23146-4209284-2559284-25526287(Top 93%)11158(Top 91%)11158(Top 204%)
21M21.00 mi1.00 mi23274-1289377-939377-9324716(Top 87%)10413(Top 85%)10413(Top 190%)
35K21.75 mi0.75 mi23429-1559474-979474-9726327(Top 93%)11251(Top 92%)11251(Top 206%)
23M23.00 mi1.25 mi23591-1629576-1029576-10225131(Top 88%)10668(Top 87%)10668(Top 195%)
24M24.00 mi1.00 mi23652-619628-529628-5224540(Top 86%)10401(Top 85%)10401(Top 190%)
40K24.85 mi0.85 mi23650+29641-139641-1323103(Top 81%)9757(Top 80%)9757(Top 178%)
25.2M25.20 mi0.35 mi23578+729614+279614+2719046(Top 67%)7685(Top 63%)7685(Top 141%)
Finish26.22 mi1.02 mi23419+1599542+729542+7218089(Top 64%)7146(Top 58%)7146(Top 131%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21stories
+97ft-345ft

Overall

19850

Females

7366

F18-39

7366

5K→10K

3.1 - 6.2 mi

Top 56%
×5stories
+79ft-138ft

Overall

16007

Females

5130

F18-39

5130

10K→15K

6.2 - 9.3 mi

Top 70%
×3stories
+67ft-78ft

Overall

19850

Females

7366

F18-39

7366

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

23837

Females

9623

F18-39

9623

20K→Half

12.4 - 13.1 mi

Top 88%
×2stories
+19ft-37ft

Overall

24970

Females

10240

F18-39

10240

Half→25K

13.1 - 15.5 mi

Top 88%
×4stories
+66ft-88ft

Overall

24980

Females

10275

F18-39

10275

25K→30K

15.5 - 18.6 mi

Top 91%
×9stories
+181ft-148ft

Overall

25888

Females

10882

F18-39

10882

30K→20M

18.6 - 20.0 mi

Top 93%
×5stories
+64ft-50ft

Overall

26287

Females

11158

F18-39

11158

20M→21M

20.0 - 21.0 mi

Top 87%
×8stories
+106ft-24ft

Overall

24716

Females

10413

F18-39

10413

21M→35K

21.0 - 21.8 mi

Top 93%
×7stories
+17ft-86ft

Overall

26327

Females

11251

F18-39

11251

35K→23M

21.8 - 23.0 mi

Top 88%
×5stories
+23ft-63ft

Overall

25131

Females

10668

F18-39

10668

23M→24M

23.0 - 24.0 mi

Top 86%
×6stories
+12ft-82ft

Overall

24540

Females

10401

F18-39

10401

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

23103

Females

9757

F18-39

9757

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

19046

Females

7685

F18-39

7685

25.2M→Finish

25.2 - 26.2 mi

Top 64%
×2stories
+22ft-21ft

Overall

18089

Females

7146

F18-39

7146

Passing Analysis

Category:
Athletes Passed
464
Passed By
11246
Net Change
-10782
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12637
5K → 10K231651-1628#12637#14265
10K → 15K52239-2234#14265#16499
15K → 20K92616-2607#16499#19106
20K → Half2514-512#19106#19618
Half → 25K81560-1552#19618#21170
25K → 30K171573-1556#21170#22726
30K → 20M18438-420#22726#23146
20M → 21M34162-128#23146#23274
21M → 35K13168-155#23274#23429
35K → 23M30192-162#23429#23591
23M → 24M2788-61#23591#23652
24M → 40K4442+2#23652#23650
40K → 25.2M753+72#23650#23578
25.2M → Finish1590+159#23578#23419
TOTALS46411246-10782
📊

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