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BOSTON MARATHON 2025

Jim Lim

Bib: 30307•M

PA

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

Start
0:00:00
Race begins
5K· 3.11 mi
27:28
Rank: #21701
Start → 5K
27:28 | 8:50/mi
10K· 6.21 mi
53:13
Rank: #20210 (+1491)
5K → 10K
25:45 | 8:17/mi
15K· 9.32 mi
1:19:15
Rank: #19664 (+546)
10K → 15K
26:02 | 8:23/mi
20K· 12.43 mi
1:46:07
Rank: #19522 (+142)
15K → 20K
26:52 | 8:39/mi
Half· 13.11 mi
1:52:06
Rank: #19587 (-65)
20K → Half
5:59 | 8:46/mi
25K· 15.53 mi
2:13:36
Rank: #19511 (+76)
Half → 25K
21:30 | 8:52/mi
30K· 18.64 mi
2:42:33
Rank: #19428 (+83)
25K → 30K
28:57 | 9:19/mi
20M
2:55:51
Rank: #19530 (-102)
30K → 20M
13:18 | 9:47/mi
21M
3:05:59
Rank: #19464 (+66)
20M → 21M
10:08 | 10:08/mi
35K· 21.75 mi
3:12:29
Rank: #19375 (+89)
21M → 35K
6:30 | 8:41/mi
23M
3:23:32
Rank: #19142 (+233)
35K → 23M
11:03 | 8:50/mi
24M
3:31:57
Rank: #18940 (+202)
23M → 24M
8:25 | 8:25/mi
40K· 24.85 mi
3:38:54
Rank: #18647 (+293)
24M → 40K
6:57 | 8:08/mi
25.2M
3:41:58
Rank: #18532 (+115)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:49:36
Rank: #18230 (+302)
25.2M → Finish
7:38 | 7:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:06
Pace8:33 /mi
2nd Half
Distance13.11 mi
Time1:57:30
Pace8:58 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:47:5527:288:5027:28
8:50
-
10K
6.21 mi12:13:4053:138:3425:45
8:17
-0:33
15K
9.32 mi12:39:421:19:158:3026:02
8:23
+0:06
20K
12.43 mi13:06:341:46:078:3226:52
8:39
+0:16
Half
13.11 mi13:12:331:52:068:335:59
8:46
+0:07
25K
15.53 mi13:34:032:13:368:3621:30
8:52
+0:06
30K
18.64 mi14:03:002:42:338:4328:57
9:19
+0:27
20M
20.00 mi14:16:182:55:518:4813:18
9:47
+0:28
21M
21.00 mi14:26:263:05:598:5110:08
10:08
+0:21
35K
21.75 mi14:32:563:12:298:516:30
8:41
-1:27
23M
23.00 mi14:43:593:23:328:5111:03
8:50
+0:09
24M
24.00 mi14:52:243:31:578:508:25
8:25
-0:25
40K
24.85 mi14:59:213:38:548:486:57
8:08
-0:17
25.2M
25.20 mi15:02:253:41:588:483:04
8:54
+0:46
Finish
26.22 mi15:10:033:49:368:467:38
7:29
-1:25

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

7:29 /mi

Average Pace

8:46 /mi

Slowest Pace

10:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:14:47

33% of race

Time at Steady Pace

1:42:26

45% of race

Time at Slower Pace

52:23

23% of race

Average Pace: 8:45 /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 mi11:47:5527:288:5027:28
8:50
#21701
10K
6.21 mi12:13:4053:138:3425:45
8:17
#20210
15K
9.32 mi12:39:421:19:158:3026:02
8:23
#19664
20K
12.43 mi13:06:341:46:078:3226:52
8:39
#19522
Half
13.11 mi13:12:331:52:068:335:59
8:46
#19587
25K
15.53 mi13:34:032:13:368:3621:30
8:52
#19511
30K
18.64 mi14:03:002:42:338:4328:57
9:19
#19428
20M
20.00 mi14:16:182:55:518:4813:18
9:47
#19530
21M
21.00 mi14:26:263:05:598:5110:08
10:08
#19464
35K
21.75 mi14:32:563:12:298:516:30
8:41
#19375
23M
23.00 mi14:43:593:23:328:5111:03
8:50
#19142
24M
24.00 mi14:52:243:31:578:508:25
8:25
#18940
40K
24.85 mi14:59:213:38:548:486:57
8:08
#18647
25.2M
25.20 mi15:02:253:41:588:483:04
8:54
#18532
Finish
26.22 mi15:10:033:49:368:467:38
7:29
#18230
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi21701131771317718567(Top 65%)11873(Top 74%)11873(Top 720%)
10K6.21 mi3.10 mi20210+149112553+62412553+62418459(Top 65%)11831(Top 73%)11831(Top 718%)
15K9.32 mi3.11 mi19664+54612336+21712336+21718567(Top 65%)11873(Top 74%)11873(Top 720%)
20K12.43 mi3.11 mi19522+14212267+6912267+6919117(Top 67%)12082(Top 75%)12082(Top 733%)
Half13.11 mi0.68 mi19587-6512290-2312290-2320711(Top 73%)12765(Top 79%)12765(Top 775%)
25K15.53 mi2.42 mi19511+7612251+3912251+3919263(Top 68%)12083(Top 75%)12083(Top 733%)
30K18.64 mi3.11 mi19428+8312173+7812173+7819189(Top 68%)11918(Top 74%)11918(Top 723%)
20M20.00 mi1.36 mi19530-10212195-2212195-2220240(Top 71%)12250(Top 76%)12250(Top 743%)
21M21.00 mi1.00 mi19464+6612143+5212143+5218781(Top 66%)11507(Top 71%)11507(Top 698%)
35K21.75 mi0.75 mi19375+8912084+5912084+5916599(Top 58%)10447(Top 65%)10447(Top 634%)
23M23.00 mi1.25 mi19142+23311962+12211962+12215243(Top 54%)9746(Top 61%)9746(Top 591%)
24M24.00 mi1.00 mi18940+20211847+11511847+11513992(Top 49%)9142(Top 57%)9142(Top 555%)
40K24.85 mi0.85 mi18647+29311694+15311694+15311087(Top 39%)7623(Top 47%)7623(Top 463%)
25.2M25.20 mi0.35 mi18532+11511626+6811626+6811187(Top 39%)7593(Top 47%)7593(Top 461%)
Finish26.22 mi1.02 mi18230+30211483+14311483+1439121(Top 32%)6515(Top 40%)6515(Top 395%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21stories
+97ft-345ft

Overall

18567

Males

11873

M55-59

11873

5K→10K

3.1 - 6.2 mi

Top 65%
×5stories
+79ft-138ft

Overall

18459

Males

11831

M55-59

11831

10K→15K

6.2 - 9.3 mi

Top 65%
×3stories
+67ft-78ft

Overall

18567

Males

11873

M55-59

11873

15K→20K

9.3 - 12.4 mi

Top 67%
×5stories
+106ft-86ft

Overall

19117

Males

12082

M55-59

12082

20K→Half

12.4 - 13.1 mi

Top 73%
×2stories
+19ft-37ft

Overall

20711

Males

12765

M55-59

12765

Half→25K

13.1 - 15.5 mi

Top 68%
×4stories
+66ft-88ft

Overall

19263

Males

12083

M55-59

12083

25K→30K

15.5 - 18.6 mi

Top 68%
×9stories
+181ft-148ft

Overall

19189

Males

11918

M55-59

11918

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

20240

Males

12250

M55-59

12250

20M→21M

20.0 - 21.0 mi

Top 66%
×8stories
+106ft-24ft

Overall

18781

Males

11507

M55-59

11507

21M→35K

21.0 - 21.8 mi

Top 58%
×7stories
+17ft-86ft

Overall

16599

Males

10447

M55-59

10447

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

15243

Males

9746

M55-59

9746

23M→24M

23.0 - 24.0 mi

Top 49%
×6stories
+12ft-82ft

Overall

13992

Males

9142

M55-59

9142

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

11087

Males

7623

M55-59

7623

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1story
+13ft-16ft

Overall

11187

Males

7593

M55-59

7593

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

9121

Males

6515

M55-59

6515

Passing Analysis

Category:
Athletes Passed
4275
Passed By
804
Net Change
+3471
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21701
5K → 10K150413+1491#21701#20210
10K → 15K56519+546#20210#19664
15K → 20K276134+142#19664#19522
20K → Half1883-65#19522#19587
Half → 25K200124+76#19587#19511
25K → 30K252169+83#19511#19428
30K → 20M76178-102#19428#19530
20M → 21M12054+66#19530#19464
21M → 35K10314+89#19464#19375
35K → 23M2374+233#19375#19142
23M → 24M2086+202#19142#18940
24M → 40K2941+293#18940#18647
40K → 25.2M1183+115#18647#18532
25.2M → Finish3042+302#18532#18230
TOTALS4275804+3471
📊

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