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BOSTON MARATHON 2025

Haelim Park

Bib: 21977•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
26:45
Rank: #20509
Start → 5K
8:37/mi
26:45 split
10K· 6.21 mi
54:12
Rank: #21016 (-507)
5K → 10K
8:50/mi
27:27 split
15K· 9.32 mi
1:22:10
Rank: #21348 (-332)
10K → 15K
9:00/mi
27:58 split
20K· 12.43 mi
1:52:25
Rank: #22139 (-791)
15K → 20K
9:44/mi
30:15 split
Half· 13.11 mi
1:59:27
Rank: #22387 (-248)
20K → Half
10:19/mi
7:02 split
25K· 15.53 mi
2:23:38
Rank: #22598 (-211)
Half → 25K
9:58/mi
24:11 split
30K· 18.64 mi
2:57:30
Rank: #22861 (-263)
25K → 30K
10:54/mi
33:52 split
20M
3:12:01
Rank: #22856 (+5)
30K → 20M
10:41/mi
14:31 split
21M
3:26:43
Rank: #23275 (-419)
20M → 21M
14:42/mi
14:42 split
35K· 21.75 mi
3:37:03
Rank: #23601 (-326)
21M → 35K
13:49/mi
10:20 split
23M
3:50:56
Rank: #23585 (+16)
35K → 23M
11:05/mi
13:53 split
24M
4:02:17
Rank: #23655 (-70)
23M → 24M
11:21/mi
11:21 split
40K· 24.85 mi
4:12:17
Rank: #23702 (-47)
24M → 40K
11:42/mi
10:00 split
25.2M
4:17:03
Rank: #23749 (-47)
40K → 25.2M
13:49/mi
4:46 split
Finish· 26.22 mi
4:30:53
Rank: #24097 (-348)
25.2M → Finish
13:34/mi
13:50 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:27
Pace9:07 /mi
2nd Half
Distance13.11 mi
Time2:31:26
Pace11:33 /mi
📊Positive Split: 26.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:4026:458:3726:45
8:37
-
10K
6.21 mi11:51:0754:128:4327:27
8:50
+0:13
15K
9.32 mi12:19:051:22:108:4927:58
9:00
+0:10
20K
12.43 mi12:49:201:52:259:0330:15
9:44
+0:44
Half
13.11 mi12:56:221:59:279:077:02
10:19
+0:35
25K
15.53 mi13:20:332:23:389:1524:11
9:58
-0:21
30K
18.64 mi13:54:252:57:309:3133:52
10:54
+0:56
20M
20.00 mi14:08:563:12:019:3614:31
10:41
-0:13
21M
21.00 mi14:23:383:26:439:5114:42
14:42
+4:01
35K
21.75 mi14:33:583:37:039:5910:20
13:49
-0:53
23M
23.00 mi14:47:513:50:5610:0213:53
11:05
-2:44
24M
24.00 mi14:59:124:02:1710:0611:21
11:21
+0:16
40K
24.85 mi15:09:124:12:1710:0910:00
11:42
+0:21
25.2M
25.20 mi15:13:584:17:0310:124:46
13:49
+2:07
Finish
26.22 mi15:27:484:30:5310:2013:50
13:34
-0:15

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

8:37 /mi

Average Pace

10:20 /mi

Slowest Pace

14:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:25

42% of race

Time at Steady Pace

1:54:50

42% of race

Time at Slower Pace

43:38

16% of race

Average Pace: 10:20 /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 mi11:23:4026:458:3726:45
8:37
#20509
10K
6.21 mi11:51:0754:128:4327:27
8:50
#21016
15K
9.32 mi12:19:051:22:108:4927:58
9:00
#21348
20K
12.43 mi12:49:201:52:259:0330:15
9:44
#22139
Half
13.11 mi12:56:221:59:279:077:02
10:19
#22387
25K
15.53 mi13:20:332:23:389:1524:11
9:58
#22598
30K
18.64 mi13:54:252:57:309:3133:52
10:54
#22861
20M
20.00 mi14:08:563:12:019:3614:31
10:41
#22856
21M
21.00 mi14:23:383:26:439:5114:42
14:42
#23275
35K
21.75 mi14:33:583:37:039:5910:20
13:49
#23601
23M
23.00 mi14:47:513:50:5610:0213:53
11:05
#23585
24M
24.00 mi14:59:124:02:1710:0611:21
11:21
#23655
40K
24.85 mi15:09:124:12:1710:0910:00
11:42
#23702
25.2M
25.20 mi15:13:584:17:0310:124:46
13:49
#23749
Finish
26.22 mi15:27:484:30:5310:2013:50
13:34
#24097
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi20509126441264422045(Top 78%)13407(Top 83%)13407(Top 1065%)
10K6.21 mi3.10 mi21016-50712895-25112895-25121572(Top 76%)13161(Top 82%)13161(Top 1045%)
15K9.32 mi3.11 mi21348-33213072-17713072-17722045(Top 78%)13407(Top 83%)13407(Top 1065%)
20K12.43 mi3.11 mi22139-79113406-33413406-33423594(Top 83%)14056(Top 87%)14056(Top 1116%)
Half13.11 mi0.68 mi22387-24813515-10913515-10925463(Top 90%)14866(Top 92%)14866(Top 1181%)
25K15.53 mi2.42 mi22598-21113617-10213617-10223196(Top 82%)13835(Top 86%)13835(Top 1099%)
30K18.64 mi3.11 mi22861-26313696-7913696-7923825(Top 84%)13990(Top 87%)13990(Top 1111%)
20M20.00 mi1.36 mi22856+513659+3713659+3722911(Top 81%)13484(Top 84%)13484(Top 1071%)
21M21.00 mi1.00 mi23275-41913837-17813837-17826898(Top 95%)15318(Top 95%)15318(Top 1217%)
35K21.75 mi0.75 mi23601-32613977-14013977-14027579(Top 97%)15613(Top 97%)15613(Top 1240%)
23M23.00 mi1.25 mi23585+1613951+2613951+2623433(Top 82%)13558(Top 84%)13558(Top 1077%)
24M24.00 mi1.00 mi23655-7013964-1313964-1324646(Top 87%)14128(Top 88%)14128(Top 1122%)
40K24.85 mi0.85 mi23702-4713970-613970-624475(Top 86%)14004(Top 87%)14004(Top 1112%)
25.2M25.20 mi0.35 mi23749-4713994-2413994-2426070(Top 92%)14783(Top 92%)14783(Top 1174%)
Finish26.22 mi1.02 mi24097-34814150-15614150-15627885(Top 98%)15779(Top 98%)15779(Top 1253%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

22045

Males

13407

M60-64

13407

5K→10K

3.1 - 6.2 mi

Top 76%
×5story building
+79ft-138ft

Overall

21572

Males

13161

M60-64

13161

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

22045

Males

13407

M60-64

13407

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

23594

Males

14056

M60-64

14056

20K→Half

12.4 - 13.1 mi

Top 90%
×2story building
+19ft-37ft

Overall

25463

Males

14866

M60-64

14866

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

23196

Males

13835

M60-64

13835

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

23825

Males

13990

M60-64

13990

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

22911

Males

13484

M60-64

13484

20M→21M

20.0 - 21.0 mi

Top 95%
×8story building
+106ft-24ft

Overall

26898

Males

15318

M60-64

15318

21M→35K

21.0 - 21.8 mi

Top 97%
×7story building
+17ft-86ft

Overall

27579

Males

15613

M60-64

15613

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

23433

Males

13558

M60-64

13558

23M→24M

23.0 - 24.0 mi

Top 87%
×6story building
+12ft-82ft

Overall

24646

Males

14128

M60-64

14128

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

24475

Males

14004

M60-64

14004

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1story
+13ft-16ft

Overall

26070

Males

14783

M60-64

14783

25.2M→Finish

25.2 - 26.2 mi

Top 98%
×2story building
+22ft-21ft

Overall

27885

Males

15779

M60-64

15779

Passing Analysis

Category:
Athletes Passed
670
Passed By
4258
Net Change
-3588
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20509
5K → 10K102609-507#20509#21016
10K → 15K111443-332#21016#21348
15K → 20K46837-791#21348#22139
20K → Half3251-248#22139#22387
Half → 25K82293-211#22387#22598
25K → 30K94357-263#22598#22861
30K → 20M7873+5#22861#22856
20M → 21M10429-419#22856#23275
21M → 35K7333-326#23275#23601
35K → 23M7963+16#23601#23585
23M → 24M2393-70#23585#23655
24M → 40K3077-47#23655#23702
40K → 25.2M249-47#23702#23749
25.2M → Finish3351-348#23749#24097
TOTALS6704258-3588
📊

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