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BOSTON MARATHON 2025

Wanju Kim

Bib: 17251•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
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
8:08/mi
25:15
↑ 97↓ 3451.5%
10K· 6.21 mi
8:12/mi
50:43
↑ 79↓ 1380.4%
15K· 9.32 mi
8:17/mi
1:16:26
↑ 67↓ 78
20K· 12.43 mi
8:38/mi
1:43:15
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:48:41
↑ 19↓ 370.5%
25K· 15.53 mi
8:17/mi
2:08:47
↑ 66↓ 880.2%
30K· 18.64 mi
8:37/mi
2:35:32
↑ 181↓ 1480.2%
20M
8:40/mi
2:47:18
↑ 64↓ 500.2%
21M
9:33/mi
2:56:51
↑ 106↓ 241.6%
35K· 21.75 mi
8:09/mi
3:02:57
↑ 17↓ 861.7%
23M
9:13/mi
3:14:30
↑ 23↓ 630.6%
24M
9:02/mi
3:23:32
↓ 821.3%
40K· 24.85 mi
9:21/mi
3:31:32
↓ 200.3%
25.2M
10:44/mi
3:35:14
↑ 13↓ 160.2%
Finish· 26.22 mi
9:25/mi
3:44:50
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:48:41
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time1:56:09
Pace8:52 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:3325:158:0825:15
8:08
-
10K
6.21 mi11:43:0150:438:1025:28
8:12
+0:04
15K
9.32 mi12:08:441:16:268:1225:43
8:17
+0:05
20K
12.43 mi12:35:331:43:158:1826:49
8:38
+0:21
Half
13.11 mi12:40:591:48:418:175:26
7:58
-0:40
25K
15.53 mi13:01:052:08:478:1720:06
8:17
+0:19
30K
18.64 mi13:27:502:35:328:2126:45
8:37
+0:20
20M
20.00 mi13:39:362:47:188:2211:46
8:40
+0:03
21M
21.00 mi13:49:092:56:518:259:33
9:33
+0:53
35K
21.75 mi13:55:153:02:578:256:06
8:09
-1:24
23M
23.00 mi14:06:483:14:308:2711:33
9:13
+1:04
24M
24.00 mi14:15:503:23:328:299:02
9:02
-0:11
40K
24.85 mi14:23:503:31:328:318:00
9:21
+0:19
25.2M
25.20 mi14:27:323:35:148:323:42
10:44
+1:23
Finish
26.22 mi14:37:083:44:508:359:36
9:25
-1:19

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

7:58 /mi

Average Pace

8:35 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:02:15

28% of race

Time at Steady Pace

1:51:09

49% of race

Time at Slower Pace

51:26

23% of race

Average Pace: 8:34 /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 mi11:17:3325:158:0825:15
8:08
#17541
10K
6.21 mi11:43:0150:438:1025:28
8:12
#17695
15K
9.32 mi12:08:441:16:268:1225:43
8:17
#17755
20K
12.43 mi12:35:331:43:158:1826:49
8:38
#18043
Half
13.11 mi12:40:591:48:418:175:26
7:58
#17915
25K
15.53 mi13:01:052:08:478:1720:06
8:17
#17536
30K
18.64 mi13:27:502:35:328:2126:45
8:37
#17106
20M
20.00 mi13:39:362:47:188:2211:46
8:40
#16916
21M
21.00 mi13:49:092:56:518:259:33
9:33
#16840
35K
21.75 mi13:55:153:02:578:256:06
8:09
#16706
23M
23.00 mi14:06:483:14:308:2711:33
9:13
#16722
24M
24.00 mi14:15:503:23:328:299:02
9:02
#16759
40K
24.85 mi14:23:503:31:328:318:00
9:21
#16810
25.2M
25.20 mi14:27:323:35:148:323:42
10:44
#16887
Finish
26.22 mi14:37:083:44:508:359:36
9:25
#17088
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi17541114341143417882(Top 63%)11584(Top 72%)11584(Top 703%)
10K6.21 mi3.10 mi17695-15411497-6311497-6317855(Top 63%)11589(Top 72%)11589(Top 703%)
15K9.32 mi3.11 mi17755-6011522-2511522-2517882(Top 63%)11584(Top 72%)11584(Top 703%)
20K12.43 mi3.11 mi18043-28811637-11511637-11519003(Top 67%)12028(Top 75%)12028(Top 730%)
Half13.11 mi0.68 mi17915+12811572+6511572+6515582(Top 55%)10610(Top 66%)10610(Top 644%)
25K15.53 mi2.42 mi17536+37911403+16911403+16915849(Top 56%)10580(Top 66%)10580(Top 642%)
30K18.64 mi3.11 mi17106+43011178+22511178+22515453(Top 54%)10264(Top 64%)10264(Top 623%)
20M20.00 mi1.36 mi16916+19011077+10111077+10114793(Top 52%)9830(Top 61%)9830(Top 596%)
21M21.00 mi1.00 mi16840+7611014+6311014+6316295(Top 57%)10387(Top 64%)10387(Top 630%)
35K21.75 mi0.75 mi16706+13410936+7810936+7813304(Top 47%)8960(Top 56%)8960(Top 544%)
23M23.00 mi1.25 mi16722-1610912+2410912+2417434(Top 61%)10710(Top 67%)10710(Top 650%)
24M24.00 mi1.00 mi16759-3710897+1510897+1517523(Top 62%)10705(Top 66%)10705(Top 650%)
40K24.85 mi0.85 mi16810-5110887+1010887+1018083(Top 64%)10872(Top 68%)10872(Top 660%)
25.2M25.20 mi0.35 mi16887-7710904-1710904-1719773(Top 70%)11671(Top 72%)11671(Top 708%)
Finish26.22 mi1.02 mi17088-20110976-7210976-7220868(Top 73%)12217(Top 76%)12217(Top 741%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 63%
×21story building
+97ft-345ft

Overall

17882

Males

11584

M55-59

11584

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

17855

Males

11589

M55-59

11589

10K→15K

6.2 - 9.3 mi

Top 63%
×3story building
+67ft-78ft

Overall

17882

Males

11584

M55-59

11584

15K→20K

9.3 - 12.4 mi

Top 67%
×5story building
+106ft-86ft

Overall

19003

Males

12028

M55-59

12028

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15582

Males

10610

M55-59

10610

Half→25K

13.1 - 15.5 mi

Top 56%
×4story building
+66ft-88ft

Overall

15849

Males

10580

M55-59

10580

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

15453

Males

10264

M55-59

10264

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

14793

Males

9830

M55-59

9830

20M→21M

20.0 - 21.0 mi

Top 57%
×8story building
+106ft-24ft

Overall

16295

Males

10387

M55-59

10387

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

13304

Males

8960

M55-59

8960

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17434

Males

10710

M55-59

10710

23M→24M

23.0 - 24.0 mi

Top 62%
×6story building
+12ft-82ft

Overall

17523

Males

10705

M55-59

10705

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18083

Males

10872

M55-59

10872

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19773

Males

11671

M55-59

11671

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

20868

Males

12217

M55-59

12217

Passing Analysis

Category:
Athletes Passed
2246
Passed By
1793
Net Change
+453
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17541
5K → 10K218372-154#17541#17695
10K → 15K166226-60#17695#17755
15K → 20K102390-288#17755#18043
20K → Half1302+128#18043#17915
Half → 25K39415+379#17915#17536
25K → 30K46131+430#17536#17106
30K → 20M20515+190#17106#16916
20M → 21M14569+76#16916#16840
21M → 35K14410+134#16840#16706
35K → 23M107123-16#16706#16722
23M → 24M67104-37#16722#16759
24M → 40K64115-51#16759#16810
40K → 25.2M2097-77#16810#16887
25.2M → Finish23224-201#16887#17088
TOTALS22461793+453
📊

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