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BOSTON MARATHON 2025

Du Jin Im

Bib: 25330•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M70-74)
#0 / 228
Top 44%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:54
Rank: #20790
Start → 5K
26:54 | 8:39/mi
10K· 6.21 mi
54:16
Rank: #21072 (-282)
5K → 10K
27:22 | 8:49/mi
15K· 9.32 mi
1:23:11
Rank: #21934 (-862)
10K → 15K
28:55 | 9:18/mi
20K· 12.43 mi
1:53:37
Rank: #22537 (-603)
15K → 20K
30:26 | 9:48/mi
Half· 13.11 mi
2:00:20
Rank: #22678 (-141)
20K → Half
6:43 | 9:51/mi
25K· 15.53 mi
2:25:05
Rank: #22919 (-241)
Half → 25K
24:45 | 10:12/mi
30K· 18.64 mi
2:58:51
Rank: #23073 (-154)
25K → 30K
33:46 | 10:52/mi
20M
3:14:10
Rank: #23171 (-98)
30K → 20M
15:19 | 11:16/mi
21M
3:26:29
Rank: #23239 (-68)
20M → 21M
12:19 | 12:19/mi
35K· 21.75 mi
3:33:48
Rank: #23167 (+72)
21M → 35K
7:19 | 9:47/mi
23M
3:47:27
Rank: #23167
35K → 23M
13:39 | 10:54/mi
24M
3:57:46
Rank: #23116 (+51)
23M → 24M
10:19 | 10:19/mi
40K· 24.85 mi
4:06:47
Rank: #23077 (+39)
24M → 40K
9:01 | 10:33/mi
25.2M
4:10:31
Rank: #23034 (+43)
40K → 25.2M
3:44 | 10:50/mi
Finish· 26.22 mi
4:20:09
Rank: #22968 (+66)
25.2M → Finish
9:38 | 9:27/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:20
Pace9:11 /mi
2nd Half
Distance13.11 mi
Time2:19:49
Pace10:40 /mi
📊Positive Split: 16.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:1026:548:3926:54
8:39
-
10K
6.21 mi11:54:3254:168:4427:22
8:49
+0:10
15K
9.32 mi12:23:271:23:118:5528:55
9:18
+0:29
20K
12.43 mi12:53:531:53:379:0930:26
9:48
+0:30
Half
13.11 mi13:00:362:00:209:116:43
9:51
+0:03
25K
15.53 mi13:25:212:25:059:2024:45
10:12
+0:21
30K
18.64 mi13:59:072:58:519:3633:46
10:52
+0:40
20M
20.00 mi14:14:263:14:109:4215:19
11:16
+0:24
21M
21.00 mi14:26:453:26:299:5012:19
12:19
+1:03
35K
21.75 mi14:34:043:33:489:507:19
9:47
-2:32
23M
23.00 mi14:47:433:47:279:5313:39
10:54
+1:07
24M
24.00 mi14:58:023:57:469:5410:19
10:19
-0:35
40K
24.85 mi15:07:034:06:479:569:01
10:33
+0:14
25.2M
25.20 mi15:10:474:10:319:563:44
10:50
+0:17
Finish
26.22 mi15:20:254:20:099:569:38
9:27
-1:23

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

8:39 /mi

Average Pace

9:56 /mi

Slowest Pace

12:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:49

36% of race

Time at Steady Pace

1:28:33

34% of race

Time at Slower Pace

1:18:47

30% of race

Average Pace: 9:55 /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 mi11:27:1026:548:3926:54
8:39
#20790
10K
6.21 mi11:54:3254:168:4427:22
8:49
#21072
15K
9.32 mi12:23:271:23:118:5528:55
9:18
#21934
20K
12.43 mi12:53:531:53:379:0930:26
9:48
#22537
Half
13.11 mi13:00:362:00:209:116:43
9:51
#22678
25K
15.53 mi13:25:212:25:059:2024:45
10:12
#22919
30K
18.64 mi13:59:072:58:519:3633:46
10:52
#23073
20M
20.00 mi14:14:263:14:109:4215:19
11:16
#23171
21M
21.00 mi14:26:453:26:299:5012:19
12:19
#23239
35K
21.75 mi14:34:043:33:489:507:19
9:47
#23167
23M
23.00 mi14:47:433:47:279:5313:39
10:54
#23167
24M
24.00 mi14:58:023:57:469:5410:19
10:19
#23116
40K
24.85 mi15:07:034:06:479:569:01
10:33
#23077
25.2M
25.20 mi15:10:474:10:319:563:44
10:50
#23034
Finish
26.22 mi15:20:254:20:099:569:38
9:27
#22968
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi20790127701277023231(Top 82%)13943(Top 87%)13943(Top 6115%)
10K6.21 mi3.10 mi21072-28212923-15312923-15321437(Top 75%)13109(Top 81%)13109(Top 5750%)
15K9.32 mi3.11 mi21934-86213311-38813311-38823231(Top 82%)13943(Top 87%)13943(Top 6115%)
20K12.43 mi3.11 mi22537-60313599-28813599-28823748(Top 84%)14112(Top 88%)14112(Top 6189%)
Half13.11 mi0.68 mi22678-14113673-7413673-7424468(Top 86%)14419(Top 90%)14419(Top 6324%)
25K15.53 mi2.42 mi22919-24113761-8813761-8823740(Top 84%)14069(Top 87%)14069(Top 6171%)
30K18.64 mi3.11 mi23073-15413787-2613787-2623741(Top 84%)13955(Top 87%)13955(Top 6121%)
20M20.00 mi1.36 mi23171-9813815-2813815-2824135(Top 85%)14047(Top 87%)14047(Top 6161%)
21M21.00 mi1.00 mi23239-6813823-813823-824114(Top 85%)13962(Top 87%)13962(Top 6124%)
35K21.75 mi0.75 mi23167+7213786+3713786+3721271(Top 75%)12569(Top 78%)12569(Top 5513%)
23M23.00 mi1.25 mi2316713747+3913747+3922999(Top 81%)13337(Top 83%)13337(Top 5850%)
24M24.00 mi1.00 mi23116+5113700+4713700+4722292(Top 78%)12951(Top 80%)12951(Top 5680%)
40K24.85 mi0.85 mi23077+3913668+3213668+3222036(Top 78%)12765(Top 79%)12765(Top 5599%)
25.2M25.20 mi0.35 mi23034+4313645+2313645+2320108(Top 71%)11850(Top 74%)11850(Top 5197%)
Finish26.22 mi1.02 mi22968+6613603+4213603+4221011(Top 74%)12299(Top 76%)12299(Top 5394%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21stories
+97ft-345ft

Overall

23231

Males

13943

M70-74

13943

5K→10K

3.1 - 6.2 mi

Top 75%
×5stories
+79ft-138ft

Overall

21437

Males

13109

M70-74

13109

10K→15K

6.2 - 9.3 mi

Top 82%
×3stories
+67ft-78ft

Overall

23231

Males

13943

M70-74

13943

15K→20K

9.3 - 12.4 mi

Top 84%
×5stories
+106ft-86ft

Overall

23748

Males

14112

M70-74

14112

20K→Half

12.4 - 13.1 mi

Top 86%
×2stories
+19ft-37ft

Overall

24468

Males

14419

M70-74

14419

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

23740

Males

14069

M70-74

14069

25K→30K

15.5 - 18.6 mi

Top 84%
×9stories
+181ft-148ft

Overall

23741

Males

13955

M70-74

13955

30K→20M

18.6 - 20.0 mi

Top 85%
×5stories
+64ft-50ft

Overall

24135

Males

14047

M70-74

14047

20M→21M

20.0 - 21.0 mi

Top 85%
×8stories
+106ft-24ft

Overall

24114

Males

13962

M70-74

13962

21M→35K

21.0 - 21.8 mi

Top 75%
×7stories
+17ft-86ft

Overall

21271

Males

12569

M70-74

12569

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

22999

Males

13337

M70-74

13337

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

22292

Males

12951

M70-74

12951

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22036

Males

12765

M70-74

12765

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

20108

Males

11850

M70-74

11850

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

21011

Males

12299

M70-74

12299

Passing Analysis

Category:
Athletes Passed
972
Passed By
3150
Net Change
-2178
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20790
5K → 10K152434-282#20790#21072
10K → 15K50912-862#21072#21934
15K → 20K59662-603#21934#22537
20K → Half10151-141#22537#22678
Half → 25K76317-241#22678#22919
25K → 30K113267-154#22919#23073
30K → 20M47145-98#23073#23171
20M → 21M50118-68#23171#23239
21M → 35K808+72#23239#23167
35K → 23M76760#23167#23167
23M → 24M7322+51#23167#23116
24M → 40K6930+39#23116#23077
40K → 25.2M452+43#23077#23034
25.2M → Finish726+66#23034#22968
TOTALS9723150-2178
📊

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