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BOSTON MARATHON 2025

Ilnam Woo

Bib: 21735•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
Top 47%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:34
Rank: #15757
Start → 5K
24:34 | 7:54/mi
10K· 6.21 mi
50:13
Rank: #17129 (-1372)
5K → 10K
25:39 | 8:15/mi
15K· 9.32 mi
1:15:23
Rank: #16981 (+148)
10K → 15K
25:10 | 8:06/mi
20K· 12.43 mi
1:41:21
Rank: #17073 (-92)
15K → 20K
25:58 | 8:21/mi
Half· 13.11 mi
1:46:47
Rank: #16989 (+84)
20K → Half
5:26 | 7:58/mi
25K· 15.53 mi
2:06:52
Rank: #16752 (+237)
Half → 25K
20:05 | 8:17/mi
30K· 18.64 mi
2:34:31
Rank: #16763 (-11)
25K → 30K
27:39 | 8:54/mi
20M
2:47:19
Rank: #16921 (-158)
30K → 20M
12:48 | 9:25/mi
21M
2:58:28
Rank: #17353 (-432)
20M → 21M
11:09 | 11:09/mi
35K· 21.75 mi
3:06:29
Rank: #17763 (-410)
21M → 35K
8:01 | 10:43/mi
23M
3:18:18
Rank: #17793 (-30)
35K → 23M
11:49 | 9:26/mi
24M
3:28:03
Rank: #17948 (-155)
23M → 24M
9:45 | 9:45/mi
40K· 24.85 mi
3:36:21
Rank: #18037 (-89)
24M → 40K
8:18 | 9:42/mi
25.2M
3:40:01
Rank: #18083 (-46)
40K → 25.2M
3:40 | 10:38/mi
Finish· 26.22 mi
3:49:29
Rank: #18203 (-120)
25.2M → Finish
9:28 | 9:17/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:47
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time2:02:42
Pace9:22 /mi
📊Positive Split: 14.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0624:347:5424:34
7:54
-
10K
6.21 mi11:44:4550:138:0525:39
8:15
+0:21
15K
9.32 mi12:09:551:15:238:0525:10
8:06
-0:09
20K
12.43 mi12:35:531:41:218:0925:58
8:21
+0:15
Half
13.11 mi12:41:191:46:478:095:26
7:58
-0:23
25K
15.53 mi13:01:242:06:528:1020:05
8:17
+0:19
30K
18.64 mi13:29:032:34:318:1727:39
8:54
+0:37
20M
20.00 mi13:41:512:47:198:2212:48
9:25
+0:31
21M
21.00 mi13:53:002:58:288:3011:09
11:09
+1:44
35K
21.75 mi14:01:013:06:298:348:01
10:43
-0:26
23M
23.00 mi14:12:503:18:188:3711:49
9:26
-1:17
24M
24.00 mi14:22:353:28:038:409:45
9:45
+0:19
40K
24.85 mi14:30:533:36:218:428:18
9:42
-0:03
25.2M
25.20 mi14:34:333:40:018:443:40
10:38
+0:56
Finish
26.22 mi14:44:013:49:298:469:28
9:17
-1:21

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

7:54 /mi

Average Pace

8:46 /mi

Slowest Pace

11:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:06:52

55% of race

Time at Steady Pace

1:19:47

35% of race

Time at Slower Pace

22:50

10% 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 mi11:19:0624:347:5424:34
7:54
#15757
10K
6.21 mi11:44:4550:138:0525:39
8:15
#17129
15K
9.32 mi12:09:551:15:238:0525:10
8:06
#16981
20K
12.43 mi12:35:531:41:218:0925:58
8:21
#17073
Half
13.11 mi12:41:191:46:478:095:26
7:58
#16989
25K
15.53 mi13:01:242:06:528:1020:05
8:17
#16752
30K
18.64 mi13:29:032:34:318:1727:39
8:54
#16763
20M
20.00 mi13:41:512:47:198:2212:48
9:25
#16921
21M
21.00 mi13:53:002:58:288:3011:09
11:09
#17353
35K
21.75 mi14:01:013:06:298:348:01
10:43
#17763
23M
23.00 mi14:12:503:18:188:3711:49
9:26
#17793
24M
24.00 mi14:22:353:28:038:409:45
9:45
#17948
40K
24.85 mi14:30:533:36:218:428:18
9:42
#18037
25.2M
25.20 mi14:34:333:40:018:443:40
10:38
#18083
Finish
26.22 mi14:44:013:49:298:469:28
9:17
#18203
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi15757107201072016735(Top 59%)11110(Top 69%)11110(Top 882%)
10K6.21 mi3.10 mi17129-137211275-55511275-55518260(Top 64%)11748(Top 73%)11748(Top 933%)
15K9.32 mi3.11 mi16981+14811229+4611229+4616735(Top 59%)11110(Top 69%)11110(Top 882%)
20K12.43 mi3.11 mi17073-9211234-511234-517274(Top 61%)11301(Top 70%)11301(Top 898%)
Half13.11 mi0.68 mi16989+8411198+3611198+3615593(Top 55%)10621(Top 66%)10621(Top 844%)
25K15.53 mi2.42 mi16752+23711086+11211086+11215804(Top 56%)10567(Top 66%)10567(Top 839%)
30K18.64 mi3.11 mi16763-1111038+4811038+4817146(Top 60%)10998(Top 68%)10998(Top 874%)
20M20.00 mi1.36 mi16921-15811080-4211080-4218813(Top 66%)11595(Top 72%)11595(Top 921%)
21M21.00 mi1.00 mi17353-43211216-13611216-13621756(Top 77%)12862(Top 80%)12862(Top 1022%)
35K21.75 mi0.75 mi17763-41011398-18211398-18223594(Top 83%)13678(Top 85%)13678(Top 1086%)
23M23.00 mi1.25 mi17793-3011365+3311365+3318391(Top 65%)11161(Top 69%)11161(Top 886%)
24M24.00 mi1.00 mi17948-15511401-3611401-3620547(Top 72%)12123(Top 75%)12123(Top 963%)
40K24.85 mi0.85 mi18037-8911424-2311424-2319490(Top 69%)11553(Top 72%)11553(Top 918%)
25.2M25.20 mi0.35 mi18083-4611435-1111435-1119439(Top 68%)11513(Top 71%)11513(Top 914%)
Finish26.22 mi1.02 mi18203-12011473-3811473-3820321(Top 72%)11964(Top 74%)11964(Top 950%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21stories
+97ft-345ft

Overall

16735

Males

11110

M60-64

11110

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

18260

Males

11748

M60-64

11748

10K→15K

6.2 - 9.3 mi

Top 59%
×3stories
+67ft-78ft

Overall

16735

Males

11110

M60-64

11110

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

17274

Males

11301

M60-64

11301

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

15593

Males

10621

M60-64

10621

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

15804

Males

10567

M60-64

10567

25K→30K

15.5 - 18.6 mi

Top 60%
×9stories
+181ft-148ft

Overall

17146

Males

10998

M60-64

10998

30K→20M

18.6 - 20.0 mi

Top 66%
×5stories
+64ft-50ft

Overall

18813

Males

11595

M60-64

11595

20M→21M

20.0 - 21.0 mi

Top 77%
×8stories
+106ft-24ft

Overall

21756

Males

12862

M60-64

12862

21M→35K

21.0 - 21.8 mi

Top 83%
×7stories
+17ft-86ft

Overall

23594

Males

13678

M60-64

13678

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18391

Males

11161

M60-64

11161

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20547

Males

12123

M60-64

12123

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19490

Males

11553

M60-64

11553

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19439

Males

11513

M60-64

11513

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

20321

Males

11964

M60-64

11964

Passing Analysis

Category:
Athletes Passed
1385
Passed By
3831
Net Change
-2446
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15757
5K → 10K411413-1372#15757#17129
10K → 15K275127+148#17129#16981
15K → 20K164256-92#16981#17073
20K → Half884+84#17073#16989
Half → 25K27235+237#16989#16752
25K → 30K218229-11#16752#16763
30K → 20M53211-158#16763#16921
20M → 21M35467-432#16921#17353
21M → 35K17427-410#17353#17763
35K → 23M97127-30#17763#17793
23M → 24M44199-155#17793#17948
24M → 40K39128-89#17948#18037
40K → 25.2M1157-46#18037#18083
25.2M → Finish31151-120#18083#18203
TOTALS13853831-2446
📊

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