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BOSTON MARATHON 2025

Andrew Cho

Bib: 8019•M

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 24%
Gender (Male)
#0 / 16105
Top 36%
Masters (Masters Men)
#0 / 10463
Top 23%
Division (M45-49)
#0 / 2386
Top 32%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:42
Rank: #5126
Start → 5K
20:42 | 6:40/mi
10K· 6.21 mi
41:30
Rank: #5182 (-56)
5K → 10K
20:48 | 6:42/mi
15K· 9.32 mi
1:02:36
Rank: #5412 (-230)
10K → 15K
21:06 | 6:47/mi
20K· 12.43 mi
1:24:12
Rank: #5721 (-309)
15K → 20K
21:36 | 6:57/mi
Half· 13.11 mi
1:28:53
Rank: #5773 (-52)
20K → Half
4:41 | 6:52/mi
25K· 15.53 mi
1:46:05
Rank: #5973 (-200)
Half → 25K
17:12 | 7:06/mi
30K· 18.64 mi
2:09:17
Rank: #6229 (-256)
25K → 30K
23:12 | 7:28/mi
20M
2:19:57
Rank: #6374 (-145)
30K → 20M
10:40 | 7:51/mi
21M
2:28:26
Rank: #6489 (-115)
20M → 21M
8:29 | 8:29/mi
35K· 21.75 mi
2:34:20
Rank: #6609 (-120)
21M → 35K
5:54 | 7:53/mi
23M
2:44:42
Rank: #6840 (-231)
35K → 23M
10:22 | 8:17/mi
24M
2:52:20
Rank: #6868 (-28)
23M → 24M
7:38 | 7:38/mi
40K· 24.85 mi
2:59:16
Rank: #6953 (-85)
24M → 40K
6:56 | 8:07/mi
25.2M
3:02:06
Rank: #6943 (+10)
40K → 25.2M
2:50 | 8:13/mi
Finish· 26.22 mi
3:09:00
Rank: #6764 (+179)
25.2M → Finish
6:54 | 6:46/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:53
Pace6:47 /mi
2nd Half
Distance13.11 mi
Time1:40:07
Pace7:38 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:3620:426:4020:42
6:40
-
10K
6.21 mi10:50:2441:306:4120:48
6:42
+0:02
15K
9.32 mi11:11:301:02:366:4321:06
6:47
+0:05
20K
12.43 mi11:33:061:24:126:4721:36
6:57
+0:10
Half
13.11 mi11:37:471:28:536:474:41
6:52
-0:05
25K
15.53 mi11:54:591:46:056:5017:12
7:06
+0:14
30K
18.64 mi12:18:112:09:176:5623:12
7:28
+0:22
20M
20.00 mi12:28:512:19:577:0010:40
7:51
+0:23
21M
21.00 mi12:37:202:28:267:048:29
8:29
+0:38
35K
21.75 mi12:43:142:34:207:065:54
7:53
-0:36
23M
23.00 mi12:53:362:44:427:1010:22
8:17
+0:24
24M
24.00 mi13:01:142:52:207:117:38
7:38
-0:39
40K
24.85 mi13:08:102:59:167:136:56
8:07
+0:29
25.2M
25.20 mi13:11:003:02:067:142:50
8:13
+0:06
Finish
26.22 mi13:17:543:09:007:136:54
6:46
-1:27

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

6:40 /mi

Average Pace

7:13 /mi

Slowest Pace

8:29 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:59

60% of race

Time at Steady Pace

30:50

16% of race

Time at Slower Pace

45:11

24% of race

Average Pace: 7:12 /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 mi10:29:3620:426:4020:42
6:40
#5126
10K
6.21 mi10:50:2441:306:4120:48
6:42
#5182
15K
9.32 mi11:11:301:02:366:4321:06
6:47
#5412
20K
12.43 mi11:33:061:24:126:4721:36
6:57
#5721
Half
13.11 mi11:37:471:28:536:474:41
6:52
#5773
25K
15.53 mi11:54:591:46:056:5017:12
7:06
#5973
30K
18.64 mi12:18:112:09:176:5623:12
7:28
#6229
20M
20.00 mi12:28:512:19:577:0010:40
7:51
#6374
21M
21.00 mi12:37:202:28:267:048:29
8:29
#6489
35K
21.75 mi12:43:142:34:207:065:54
7:53
#6609
23M
23.00 mi12:53:362:44:427:1010:22
8:17
#6840
24M
24.00 mi13:01:142:52:207:117:38
7:38
#6868
40K
24.85 mi13:08:102:59:167:136:56
8:07
#6953
25.2M
25.20 mi13:11:003:02:067:142:50
8:13
#6943
Finish
26.22 mi13:17:543:09:007:136:54
6:46
#6764
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5126478247826015(Top 21%)5469(Top 34%)5469(Top 229%)
10K6.21 mi3.10 mi5182-564822-404822-405309(Top 19%)4921(Top 31%)4921(Top 206%)
15K9.32 mi3.11 mi5412-2305009-1875009-1876015(Top 21%)5469(Top 34%)5469(Top 229%)
20K12.43 mi3.11 mi5721-3095252-2435252-2436598(Top 23%)5904(Top 37%)5904(Top 247%)
Half13.11 mi0.68 mi5773-525297-455297-456662(Top 23%)5958(Top 37%)5958(Top 250%)
25K15.53 mi2.42 mi5973-2005437-1405437-1406934(Top 24%)6073(Top 38%)6073(Top 255%)
30K18.64 mi3.11 mi6229-2565613-1765613-1767514(Top 26%)6286(Top 39%)6286(Top 263%)
20M20.00 mi1.36 mi6374-1455720-1075720-1079342(Top 33%)7169(Top 45%)7169(Top 300%)
21M21.00 mi1.00 mi6489-1155783-635783-6310310(Top 36%)7507(Top 47%)7507(Top 315%)
35K21.75 mi0.75 mi6609-1205855-725855-7211394(Top 40%)8028(Top 50%)8028(Top 336%)
23M23.00 mi1.25 mi6840-2315986-1315986-13111889(Top 42%)8171(Top 51%)8171(Top 342%)
24M24.00 mi1.00 mi6868-285982+45982+48616(Top 30%)6436(Top 40%)6436(Top 270%)
40K24.85 mi0.85 mi6953-856007-256007-2510874(Top 38%)7484(Top 46%)7484(Top 314%)
25.2M25.20 mi0.35 mi6943+105986+215986+217112(Top 25%)5402(Top 34%)5402(Top 226%)
Finish26.22 mi1.02 mi6764+1795839+1475839+1474342(Top 15%)3686(Top 23%)3686(Top 154%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21stories
+97ft-345ft

Overall

6015

Males

5469

M45-49

5469

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5309

Males

4921

M45-49

4921

10K→15K

6.2 - 9.3 mi

Top 21%
×3stories
+67ft-78ft

Overall

6015

Males

5469

M45-49

5469

15K→20K

9.3 - 12.4 mi

Top 23%
×5stories
+106ft-86ft

Overall

6598

Males

5904

M45-49

5904

20K→Half

12.4 - 13.1 mi

Top 23%
×2stories
+19ft-37ft

Overall

6662

Males

5958

M45-49

5958

Half→25K

13.1 - 15.5 mi

Top 24%
×4stories
+66ft-88ft

Overall

6934

Males

6073

M45-49

6073

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7514

Males

6286

M45-49

6286

30K→20M

18.6 - 20.0 mi

Top 33%
×5stories
+64ft-50ft

Overall

9342

Males

7169

M45-49

7169

20M→21M

20.0 - 21.0 mi

Top 36%
×8stories
+106ft-24ft

Overall

10310

Males

7507

M45-49

7507

21M→35K

21.0 - 21.8 mi

Top 40%
×7stories
+17ft-86ft

Overall

11394

Males

8028

M45-49

8028

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

11889

Males

8171

M45-49

8171

23M→24M

23.0 - 24.0 mi

Top 30%
×6stories
+12ft-82ft

Overall

8616

Males

6436

M45-49

6436

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

10874

Males

7484

M45-49

7484

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

7112

Males

5402

M45-49

5402

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

4342

Males

3686

M45-49

3686

Passing Analysis

Category:
Athletes Passed
921
Passed By
2559
Net Change
-1638
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5126
5K → 10K147203-56#5126#5182
10K → 15K59289-230#5182#5412
15K → 20K52361-309#5412#5721
20K → Half1062-52#5721#5773
Half → 25K82282-200#5773#5973
25K → 30K110366-256#5973#6229
30K → 20M51196-145#6229#6374
20M → 21M31146-115#6374#6489
21M → 35K24144-120#6489#6609
35K → 23M39270-231#6609#6840
23M → 24M6088-28#6840#6868
24M → 40K39124-85#6868#6953
40K → 25.2M3222+10#6953#6943
25.2M → Finish1856+179#6943#6764
TOTALS9212559-1638
📊

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