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BOSTON MARATHON 2025

Jonggu Kim

Bib: 17359•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:00
Rank: #26303
Start → 5K
32:00 | 10:18/mi
10K· 6.21 mi
1:04:59
Rank: #26417 (-114)
5K → 10K
32:59 | 10:37/mi
15K· 9.32 mi
1:39:35
Rank: #26613 (-196)
10K → 15K
34:36 | 11:08/mi
20K· 12.43 mi
2:15:46
Rank: #26676 (-63)
15K → 20K
36:11 | 11:39/mi
Half· 13.11 mi
2:23:59
Rank: #26743 (-67)
20K → Half
8:13 | 12:03/mi
25K· 15.53 mi
2:56:18
Rank: #26963 (-220)
Half → 25K
32:19 | 13:20/mi
30K· 18.64 mi
3:42:37
Rank: #27240 (-277)
25K → 30K
46:19 | 14:54/mi
20M
4:00:36
Rank: #27212 (+28)
30K → 20M
17:59 | 13:14/mi
21M
4:15:35
Rank: #27226 (-14)
20M → 21M
14:59 | 14:59/mi
35K· 21.75 mi
4:25:04
Rank: #27209 (+17)
21M → 35K
9:29 | 12:41/mi
23M
4:42:05
Rank: #27221 (-12)
35K → 23M
17:01 | 13:35/mi
24M
4:54:08
Rank: #27167 (+54)
23M → 24M
12:03 | 12:03/mi
40K· 24.85 mi
5:06:03
Rank: #27182 (-15)
24M → 40K
11:55 | 13:56/mi
25.2M
5:11:14
Rank: #27190 (-8)
40K → 25.2M
5:11 | 15:02/mi
Finish· 26.22 mi
5:24:06
Rank: #27215 (-25)
25.2M → Finish
12:52 | 12:38/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:23:59
Pace10:59 /mi
2nd Half
Distance13.11 mi
Time3:00:07
Pace13:44 /mi
📊Positive Split: 25.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:32:0232:0010:1832:00
10:18
-
10K
6.21 mi12:05:011:04:5910:2732:59
10:37
+0:19
15K
9.32 mi12:39:371:39:3510:4134:36
11:08
+0:31
20K
12.43 mi13:15:482:15:4610:5536:11
11:39
+0:31
Half
13.11 mi13:24:012:23:5910:598:13
12:03
+0:24
25K
15.53 mi13:56:202:56:1811:2132:19
13:20
+1:17
30K
18.64 mi14:42:393:42:3711:5746:19
14:54
+1:34
20M
20.00 mi15:00:384:00:3612:0217:59
13:14
-1:40
21M
21.00 mi15:15:374:15:3512:1014:59
14:59
+1:45
35K
21.75 mi15:25:064:25:0412:119:29
12:41
-2:18
23M
23.00 mi15:42:074:42:0512:1617:01
13:35
+0:54
24M
24.00 mi15:54:104:54:0812:1512:03
12:03
-1:32
40K
24.85 mi16:06:055:06:0312:1911:55
13:56
+1:53
25.2M
25.20 mi16:11:165:11:1412:215:11
15:02
+1:06
Finish
26.22 mi16:24:085:24:0612:2212:52
12:38
-2:24

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

10:18 /mi

Average Pace

12:22 /mi

Slowest Pace

15:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:15:46

42% of race

Time at Steady Pace

1:32:55

29% of race

Time at Slower Pace

1:35:25

29% of race

Average Pace: 12:22 /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 mi11:32:0232:0010:1832:00
10:18
#26303
10K
6.21 mi12:05:011:04:5910:2732:59
10:37
#26417
15K
9.32 mi12:39:371:39:3510:4134:36
11:08
#26613
20K
12.43 mi13:15:482:15:4610:5536:11
11:39
#26676
Half
13.11 mi13:24:012:23:5910:598:13
12:03
#26743
25K
15.53 mi13:56:202:56:1811:2132:19
13:20
#26963
30K
18.64 mi14:42:393:42:3711:5746:19
14:54
#27240
20M
20.00 mi15:00:384:00:3612:0217:59
13:14
#27212
21M
21.00 mi15:15:374:15:3512:1014:59
14:59
#27226
35K
21.75 mi15:25:064:25:0412:119:29
12:41
#27209
23M
23.00 mi15:42:074:42:0512:1617:01
13:35
#27221
24M
24.00 mi15:54:104:54:0812:1512:03
12:03
#27167
40K
24.85 mi16:06:055:06:0312:1911:55
13:56
#27182
25.2M
25.20 mi16:11:165:11:1412:215:11
15:02
#27190
Finish
26.22 mi16:24:085:24:0612:2212:52
12:38
#27215
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi26303153131531326853(Top 95%)15500(Top 96%)15500(Top 1231%)
10K6.21 mi3.10 mi26417-11415344-3115344-3126466(Top 93%)15347(Top 95%)15347(Top 1219%)
15K9.32 mi3.11 mi26613-19615426-8215426-8226853(Top 95%)15500(Top 96%)15500(Top 1231%)
20K12.43 mi3.11 mi26676-6315446-2015446-2026796(Top 94%)15457(Top 96%)15457(Top 1228%)
Half13.11 mi0.68 mi26743-6715472-2615472-2627487(Top 97%)15710(Top 98%)15710(Top 1248%)
25K15.53 mi2.42 mi26963-22015535-6315535-6327516(Top 97%)15719(Top 98%)15719(Top 1249%)
30K18.64 mi3.11 mi27240-27715627-9215627-9227991(Top 99%)15871(Top 99%)15871(Top 1261%)
20M20.00 mi1.36 mi27212+2815611+1615611+1626669(Top 94%)15219(Top 94%)15219(Top 1209%)
21M21.00 mi1.00 mi27226-1415610+115610+127137(Top 96%)15432(Top 96%)15432(Top 1226%)
35K21.75 mi0.75 mi27209+1715596+1415596+1426664(Top 94%)15172(Top 94%)15172(Top 1205%)
23M23.00 mi1.25 mi27221-1215592+415592+426960(Top 95%)15309(Top 95%)15309(Top 1216%)
24M24.00 mi1.00 mi27167+5415567+2515567+2525743(Top 91%)14679(Top 91%)14679(Top 1166%)
40K24.85 mi0.85 mi27182-15155671556727136(Top 96%)15354(Top 95%)15354(Top 1220%)
25.2M25.20 mi0.35 mi27190-815573-615573-627149(Top 96%)15354(Top 95%)15354(Top 1220%)
Finish26.22 mi1.02 mi27215-2515574-115574-127380(Top 96%)15502(Top 96%)15502(Top 1231%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 95%
×21stories
+97ft-345ft

Overall

26853

Males

15500

M60-64

15500

5K→10K

3.1 - 6.2 mi

Top 93%
×5stories
+79ft-138ft

Overall

26466

Males

15347

M60-64

15347

10K→15K

6.2 - 9.3 mi

Top 95%
×3stories
+67ft-78ft

Overall

26853

Males

15500

M60-64

15500

15K→20K

9.3 - 12.4 mi

Top 94%
×5stories
+106ft-86ft

Overall

26796

Males

15457

M60-64

15457

20K→Half

12.4 - 13.1 mi

Top 97%
×2stories
+19ft-37ft

Overall

27487

Males

15710

M60-64

15710

Half→25K

13.1 - 15.5 mi

Top 97%
×4stories
+66ft-88ft

Overall

27516

Males

15719

M60-64

15719

25K→30K

15.5 - 18.6 mi

Top 99%
×9stories
+181ft-148ft

Overall

27991

Males

15871

M60-64

15871

30K→20M

18.6 - 20.0 mi

Top 94%
×5stories
+64ft-50ft

Overall

26669

Males

15219

M60-64

15219

20M→21M

20.0 - 21.0 mi

Top 96%
×8stories
+106ft-24ft

Overall

27137

Males

15432

M60-64

15432

21M→35K

21.0 - 21.8 mi

Top 94%
×7stories
+17ft-86ft

Overall

26664

Males

15172

M60-64

15172

35K→23M

21.8 - 23.0 mi

Top 95%
×5stories
+23ft-63ft

Overall

26960

Males

15309

M60-64

15309

23M→24M

23.0 - 24.0 mi

Top 91%
×6stories
+12ft-82ft

Overall

25743

Males

14679

M60-64

14679

24M→40K

24.0 - 24.9 mi

Top 96%
×1story
+6ft-20ft

Overall

27136

Males

15354

M60-64

15354

40K→25.2M

24.9 - 25.2 mi

Top 96%
×1story
+13ft-16ft

Overall

27149

Males

15354

M60-64

15354

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2stories
+22ft-21ft

Overall

27380

Males

15502

M60-64

15502

Passing Analysis

Category:
Athletes Passed
503
Passed By
1415
Net Change
-912
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26303
5K → 10K120234-114#26303#26417
10K → 15K59255-196#26417#26613
15K → 20K82145-63#26613#26676
20K → Half875-67#26676#26743
Half → 25K20240-220#26743#26963
25K → 30K19296-277#26963#27240
30K → 20M4315+28#27240#27212
20M → 21M1529-14#27212#27226
21M → 35K2912+17#27226#27209
35K → 23M2032-12#27209#27221
23M → 24M573+54#27221#27167
24M → 40K1227-15#27167#27182
40K → 25.2M614-8#27182#27190
25.2M → Finish1338-25#27190#27215
TOTALS5031415-912
📊

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