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BOSTON MARATHON 2025

Kevin Gunawan

Bib: 909•M

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 4%
Gender (Male)
#0 / 16105
Top 6%
Division (M18-39)
#0 / 5642
Top 14%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
5:43/mi
17:45
↑ 97↓ 3451.5%
10K· 6.21 mi
5:44/mi
35:34
↑ 79↓ 1380.4%
15K· 9.32 mi
5:42/mi
53:18
↑ 67↓ 78
20K· 12.43 mi
5:44/mi
1:11:06
↑ 106↓ 860.1%
Half· 13.11 mi
5:39/mi
1:14:57
↑ 19↓ 370.5%
25K· 15.53 mi
5:50/mi
1:29:06
↑ 66↓ 880.2%
30K· 18.64 mi
6:28/mi
1:49:12
↑ 181↓ 1480.2%
20M
6:51/mi
1:58:30
↑ 64↓ 500.2%
21M
7:21/mi
2:05:51
↑ 106↓ 241.6%
35K· 21.75 mi
6:08/mi
2:10:26
↑ 17↓ 861.7%
23M
6:39/mi
2:18:46
↑ 23↓ 630.6%
24M
6:56/mi
2:25:42
↓ 821.3%
40K· 24.85 mi
7:22/mi
2:32:00
↓ 200.3%
25.2M
8:10/mi
2:34:49
↑ 13↓ 160.2%
Finish· 26.22 mi
7:03/mi
2:42:00
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:14:57
Pace5:43 /mi
2nd Half
Distance13.11 mi
Time1:27:03
Pace6:38 /mi
📊Positive Split: 16.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:5017:455:4317:45
5:43
-
10K
6.21 mi10:35:3935:345:4317:49
5:44
+0:01
15K
9.32 mi10:53:2353:185:4317:44
5:42
-0:02
20K
12.43 mi11:11:111:11:065:4317:48
5:44
+0:02
Half
13.11 mi11:15:021:14:575:433:51
5:39
-0:05
25K
15.53 mi11:29:111:29:065:4414:09
5:50
+0:11
30K
18.64 mi11:49:171:49:125:5120:06
6:28
+0:38
20M
20.00 mi11:58:351:58:305:559:18
6:51
+0:23
21M
21.00 mi12:05:562:05:516:007:21
7:21
+0:30
35K
21.75 mi12:10:312:10:266:004:35
6:08
-1:13
23M
23.00 mi12:18:512:18:466:028:20
6:39
+0:31
24M
24.00 mi12:25:472:25:426:046:56
6:56
+0:17
40K
24.85 mi12:32:052:32:006:076:18
7:22
+0:26
25.2M
25.20 mi12:34:542:34:496:092:49
8:10
+0:48
Finish
26.22 mi12:42:052:42:006:117:11
7:03
-1:07

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

5:39 /mi

Average Pace

6:11 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:29:06

55% of race

Time at Steady Pace

33:01

20% of race

Time at Slower Pace

39:53

25% of race

Average Pace: 6:11 /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 mi10:17:5017:455:4317:45
5:43
#453
10K
6.21 mi10:35:3935:345:4317:49
5:44
#474
15K
9.32 mi10:53:2353:185:4317:44
5:42
#443
20K
12.43 mi11:11:111:11:065:4317:48
5:44
#408
Half
13.11 mi11:15:021:14:575:433:51
5:39
#403
25K
15.53 mi11:29:111:29:065:4414:09
5:50
#406
30K
18.64 mi11:49:171:49:125:5120:06
6:28
#523
20M
20.00 mi11:58:351:58:305:559:18
6:51
#606
21M
21.00 mi12:05:562:05:516:007:21
7:21
#690
35K
21.75 mi12:10:312:10:266:004:35
6:08
#682
23M
23.00 mi12:18:512:18:466:028:20
6:39
#714
24M
24.00 mi12:25:472:25:426:046:56
6:56
#784
40K
24.85 mi12:32:052:32:006:076:18
7:22
#871
25.2M
25.20 mi12:34:542:34:496:092:49
8:10
#917
Finish
26.22 mi12:42:052:42:006:117:11
7:03
#1004
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi453415415401(Top 1%)371(Top 2%)371(Top 7%)
10K6.21 mi3.10 mi474-21437-22437-22511(Top 2%)474(Top 3%)474(Top 8%)
15K9.32 mi3.11 mi443+31408+29408+29401(Top 1%)371(Top 2%)371(Top 7%)
20K12.43 mi3.11 mi408+35376+32376+32355(Top 1%)326(Top 2%)326(Top 6%)
Half13.11 mi0.68 mi403+5371+5371+5374(Top 1%)348(Top 2%)348(Top 6%)
25K15.53 mi2.42 mi406-3374-3374-3469(Top 2%)436(Top 3%)436(Top 8%)
30K18.64 mi3.11 mi523-117478-104478-1041834(Top 6%)1744(Top 11%)1744(Top 31%)
20M20.00 mi1.36 mi606-83559-81559-813154(Top 11%)2919(Top 18%)2919(Top 52%)
21M21.00 mi1.00 mi690-84643-84643-843821(Top 13%)3471(Top 22%)3471(Top 62%)
35K21.75 mi0.75 mi682+8635+8635+81008(Top 4%)949(Top 6%)949(Top 17%)
23M23.00 mi1.25 mi714-32665-30665-302041(Top 7%)1906(Top 12%)1906(Top 34%)
24M24.00 mi1.00 mi784-70734-69734-694221(Top 15%)3702(Top 23%)3702(Top 66%)
40K24.85 mi0.85 mi871-87816-82816-825970(Top 21%)4816(Top 30%)4816(Top 85%)
25.2M25.20 mi0.35 mi917-46860-44860-446739(Top 24%)5158(Top 32%)5158(Top 91%)
Finish26.22 mi1.02 mi1004-87944-84944-846011(Top 21%)4719(Top 29%)4719(Top 84%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21story building
+97ft-345ft

Overall

401

Males

371

M18-39

371

5K→10K

3.1 - 6.2 mi

Top 2%
×5story building
+79ft-138ft

Overall

511

Males

474

M18-39

474

10K→15K

6.2 - 9.3 mi

Top 1%
×3story building
+67ft-78ft

Overall

401

Males

371

M18-39

371

15K→20K

9.3 - 12.4 mi

Top 1%
×5story building
+106ft-86ft

Overall

355

Males

326

M18-39

326

20K→Half

12.4 - 13.1 mi

Top 1%
×2story building
+19ft-37ft

Overall

374

Males

348

M18-39

348

Half→25K

13.1 - 15.5 mi

Top 2%
×4story building
+66ft-88ft

Overall

469

Males

436

M18-39

436

25K→30K

15.5 - 18.6 mi

Top 6%
×9story building
+181ft-148ft

Overall

1834

Males

1744

M18-39

1744

30K→20M

18.6 - 20.0 mi

Top 11%
×5story building
+64ft-50ft

Overall

3154

Males

2919

M18-39

2919

20M→21M

20.0 - 21.0 mi

Top 13%
×8story building
+106ft-24ft

Overall

3821

Males

3471

M18-39

3471

21M→35K

21.0 - 21.8 mi

Top 4%
×7story building
+17ft-86ft

Overall

1008

Males

949

M18-39

949

35K→23M

21.8 - 23.0 mi

Top 7%
×5story building
+23ft-63ft

Overall

2041

Males

1906

M18-39

1906

23M→24M

23.0 - 24.0 mi

Top 15%
×6story building
+12ft-82ft

Overall

4221

Males

3702

M18-39

3702

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5970

Males

4816

M18-39

4816

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6739

Males

5158

M18-39

5158

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2story building
+22ft-21ft

Overall

6011

Males

4719

M18-39

4719

Passing Analysis

Category:
Athletes Passed
151
Passed By
702
Net Change
-551
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#453
5K → 10K1536-21#453#474
10K → 15K4312+31#474#443
15K → 20K405+35#443#408
20K → Half61+5#408#403
Half → 25K1013-3#403#406
25K → 30K4121-117#406#523
30K → 20M083-83#523#606
20M → 21M387-84#606#690
21M → 35K1810+8#690#682
35K → 23M739-32#682#714
23M → 24M272-70#714#784
24M → 40K188-87#784#871
40K → 25.2M147-46#871#917
25.2M → Finish188-87#917#1004
TOTALS151702-551
📊

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