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BOSTON MARATHON 2025

Jin-Hwan Ro

Bib: 4730•M

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 13%
Division (M18-39)
#0 / 5642
Top 30%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:55
Rank: #3188
Start → 5K
19:55 | 6:25/mi
10K· 6.21 mi
40:03
Rank: #3361 (-173)
5K → 10K
20:08 | 6:29/mi
15K· 9.32 mi
59:52
Rank: #3154 (+207)
10K → 15K
19:49 | 6:23/mi
20K· 12.43 mi
1:20:41
Rank: #3438 (-284)
15K → 20K
20:49 | 6:42/mi
Half· 13.11 mi
1:24:57
Rank: #3368 (+70)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:40:17
Rank: #3081 (+287)
Half → 25K
15:20 | 6:19/mi
30K· 18.64 mi
2:00:25
Rank: #2778 (+303)
25K → 30K
20:08 | 6:29/mi
20M
2:09:15
Rank: #2644 (+134)
30K → 20M
8:50 | 6:30/mi
21M
2:16:00
Rank: #2521 (+123)
20M → 21M
6:45 | 6:45/mi
35K· 21.75 mi
2:20:39
Rank: #2451 (+70)
21M → 35K
4:39 | 6:13/mi
23M
2:28:39
Rank: #2324 (+127)
35K → 23M
8:00 | 6:23/mi
24M
2:35:06
Rank: #2286 (+38)
23M → 24M
6:27 | 6:27/mi
40K· 24.85 mi
2:40:30
Rank: #2192 (+94)
24M → 40K
5:24 | 6:19/mi
25.2M
2:42:55
Rank: #2165 (+27)
40K → 25.2M
2:25 | 7:00/mi
Finish· 26.22 mi
2:49:35
Rank: #2188 (-23)
25.2M → Finish
6:40 | 6:33/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:24:57
Pace6:29 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:24:38
Pace6:27 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:1719:556:2519:55
6:25
-
10K
6.21 mi10:44:2540:036:2720:08
6:29
+0:04
15K
9.32 mi11:04:1459:526:2519:49
6:23
-0:06
20K
12.43 mi11:25:031:20:416:3020:49
6:42
+0:19
Half
13.11 mi11:29:191:24:576:294:16
6:15
-0:27
25K
15.53 mi11:44:391:40:176:2715:20
6:19
+0:04
30K
18.64 mi12:04:472:00:256:2820:08
6:29
+0:10
20M
20.00 mi12:13:372:09:156:288:50
6:30
+0:01
21M
21.00 mi12:20:222:16:006:296:45
6:45
+0:15
35K
21.75 mi12:25:012:20:396:284:39
6:13
-0:32
23M
23.00 mi12:33:012:28:396:288:00
6:23
+0:10
24M
24.00 mi12:39:282:35:066:286:27
6:27
+0:04
40K
24.85 mi12:44:522:40:306:275:24
6:19
-0:08
25.2M
25.20 mi12:47:172:42:556:282:25
7:00
+0:41
Finish
26.22 mi12:53:572:49:356:286:40
6:33
-0:27

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

6:13 /mi

Average Pace

6:28 /mi

Slowest Pace

7:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:10

99% of race

Time at Steady Pace

2:25

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:28 /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 mi10:24:1719:556:2519:55
6:25
#3188
10K
6.21 mi10:44:2540:036:2720:08
6:29
#3361
15K
9.32 mi11:04:1459:526:2519:49
6:23
#3154
20K
12.43 mi11:25:031:20:416:3020:49
6:42
#3438
Half
13.11 mi11:29:191:24:576:294:16
6:15
#3368
25K
15.53 mi11:44:391:40:176:2715:20
6:19
#3081
30K
18.64 mi12:04:472:00:256:2820:08
6:29
#2778
20M
20.00 mi12:13:372:09:156:288:50
6:30
#2644
21M
21.00 mi12:20:222:16:006:296:45
6:45
#2521
35K
21.75 mi12:25:012:20:396:284:39
6:13
#2451
23M
23.00 mi12:33:012:28:396:288:00
6:23
#2324
24M
24.00 mi12:39:282:35:066:286:27
6:27
#2286
40K
24.85 mi12:44:522:40:306:275:24
6:19
#2192
25.2M
25.20 mi12:47:172:42:556:282:25
7:00
#2165
Finish
26.22 mi12:53:572:49:356:286:40
6:33
#2188
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3188302830282790(Top 10%)2656(Top 16%)2656(Top 47%)
10K6.21 mi3.10 mi3361-1733191-1633191-1633573(Top 13%)3380(Top 21%)3380(Top 60%)
15K9.32 mi3.11 mi3154+2073002+1893002+1892790(Top 10%)2656(Top 16%)2656(Top 47%)
20K12.43 mi3.11 mi3438-2843258-2563258-2564411(Top 16%)4115(Top 26%)4115(Top 73%)
Half13.11 mi0.68 mi3368+703198+603198+602229(Top 8%)2130(Top 13%)2130(Top 38%)
25K15.53 mi2.42 mi3081+2872936+2622936+2621982(Top 7%)1886(Top 12%)1886(Top 33%)
30K18.64 mi3.11 mi2778+3032648+2882648+2881893(Top 7%)1803(Top 11%)1803(Top 32%)
20M20.00 mi1.36 mi2644+1342522+1262522+1261629(Top 6%)1540(Top 10%)1540(Top 27%)
21M21.00 mi1.00 mi2521+1232404+1182404+1181370(Top 5%)1296(Top 8%)1296(Top 23%)
35K21.75 mi0.75 mi2451+702338+662338+661290(Top 5%)1220(Top 8%)1220(Top 22%)
23M23.00 mi1.25 mi2324+1272216+1222216+1221103(Top 4%)1043(Top 6%)1043(Top 18%)
24M24.00 mi1.00 mi2286+382176+402176+401845(Top 6%)1714(Top 11%)1714(Top 30%)
40K24.85 mi0.85 mi2192+942083+932083+931012(Top 4%)949(Top 6%)949(Top 17%)
25.2M25.20 mi0.35 mi2165+272056+272056+271496(Top 5%)1367(Top 8%)1367(Top 24%)
Finish26.22 mi1.02 mi2188-232077-212077-213002(Top 11%)2670(Top 17%)2670(Top 47%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21stories
+97ft-345ft

Overall

2790

Males

2656

M18-39

2656

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3573

Males

3380

M18-39

3380

10K→15K

6.2 - 9.3 mi

Top 10%
×3stories
+67ft-78ft

Overall

2790

Males

2656

M18-39

2656

15K→20K

9.3 - 12.4 mi

Top 16%
×5stories
+106ft-86ft

Overall

4411

Males

4115

M18-39

4115

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2229

Males

2130

M18-39

2130

Half→25K

13.1 - 15.5 mi

Top 7%
×4stories
+66ft-88ft

Overall

1982

Males

1886

M18-39

1886

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1893

Males

1803

M18-39

1803

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1629

Males

1540

M18-39

1540

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1370

Males

1296

M18-39

1296

21M→35K

21.0 - 21.8 mi

Top 5%
×7stories
+17ft-86ft

Overall

1290

Males

1220

M18-39

1220

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1103

Males

1043

M18-39

1043

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1845

Males

1714

M18-39

1714

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1012

Males

949

M18-39

949

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1496

Males

1367

M18-39

1367

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3002

Males

2670

M18-39

2670

Passing Analysis

Category:
Athletes Passed
1658
Passed By
658
Net Change
+1000
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3188
5K → 10K69242-173#3188#3361
10K → 15K22316+207#3361#3154
15K → 20K34318-284#3154#3438
20K → Half700+70#3438#3368
Half → 25K2881+287#3368#3081
25K → 30K3129+303#3081#2778
30K → 20M1395+134#2778#2644
20M → 21M1230+123#2644#2521
21M → 35K733+70#2521#2451
35K → 23M1292+127#2451#2324
23M → 24M5214+38#2324#2286
24M → 40K951+94#2286#2192
40K → 25.2M303+27#2192#2165
25.2M → Finish2144-23#2165#2188
TOTALS1658658+1000
📊

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