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BOSTON MARATHON 2025

Jonathan Kovac

Bib: 1124•M

PA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 4%
Gender (Male)
#0 / 16105
Top 7%
Division (M18-39)
#0 / 5642
Top 18%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:57
Rank: #1420
Start → 5K
18:57 | 6:06/mi
10K· 6.21 mi
38:01
Rank: #1510 (-90)
5K → 10K
19:04 | 6:08/mi
15K· 9.32 mi
57:10
Rank: #1548 (-38)
10K → 15K
19:09 | 6:10/mi
20K· 12.43 mi
1:16:05
Rank: #1419 (+129)
15K → 20K
18:55 | 6:05/mi
Half· 13.11 mi
1:20:12
Rank: #1408 (+11)
20K → Half
4:07 | 6:02/mi
25K· 15.53 mi
1:35:06
Rank: #1360 (+48)
Half → 25K
14:54 | 6:09/mi
30K· 18.64 mi
1:54:51
Rank: #1336 (+24)
25K → 30K
19:45 | 6:21/mi
20M
2:03:40
Rank: #1331 (+5)
30K → 20M
8:49 | 6:29/mi
21M
2:10:20
Rank: #1293 (+38)
20M → 21M
6:40 | 6:40/mi
35K· 21.75 mi
2:15:04
Rank: #1288 (+5)
21M → 35K
4:44 | 6:20/mi
23M
2:23:17
Rank: #1278 (+10)
35K → 23M
8:13 | 6:34/mi
24M
2:29:44
Rank: #1281 (-3)
23M → 24M
6:27 | 6:27/mi
40K· 24.85 mi
2:35:17
Rank: #1282 (-1)
24M → 40K
5:33 | 6:29/mi
25.2M
2:37:43
Rank: #1273 (+9)
40K → 25.2M
2:26 | 7:03/mi
Finish· 26.22 mi
2:43:55
Rank: #1243 (+30)
25.2M → Finish
6:12 | 6:05/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:12
Pace6:07 /mi
2nd Half
Distance13.11 mi
Time1:23:43
Pace6:23 /mi
📊Positive Split: 4.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:1618:576:0618:57
6:06
-
10K
6.21 mi10:38:2038:016:0719:04
6:08
+0:02
15K
9.32 mi10:57:2957:106:0819:09
6:10
+0:02
20K
12.43 mi11:16:241:16:056:0718:55
6:05
-0:05
Half
13.11 mi11:20:311:20:126:074:07
6:02
-0:03
25K
15.53 mi11:35:251:35:066:0714:54
6:09
+0:07
30K
18.64 mi11:55:101:54:516:1019:45
6:21
+0:12
20M
20.00 mi12:03:592:03:406:118:49
6:29
+0:08
21M
21.00 mi12:10:392:10:206:126:40
6:40
+0:11
35K
21.75 mi12:15:232:15:046:134:44
6:20
-0:20
23M
23.00 mi12:23:362:23:176:148:13
6:34
+0:14
24M
24.00 mi12:30:032:29:446:146:27
6:27
-0:07
40K
24.85 mi12:35:362:35:176:155:33
6:29
+0:02
25.2M
25.20 mi12:38:022:37:436:162:26
7:03
+0:34
Finish
26.22 mi12:44:142:43:556:156:12
6:05
-0:58

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

6:02 /mi

Average Pace

6:15 /mi

Slowest Pace

7:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:34:49

94% of race

Time at Steady Pace

9:06

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:15 /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 mi10:19:1618:576:0618:57
6:06
#1420
10K
6.21 mi10:38:2038:016:0719:04
6:08
#1510
15K
9.32 mi10:57:2957:106:0819:09
6:10
#1548
20K
12.43 mi11:16:241:16:056:0718:55
6:05
#1419
Half
13.11 mi11:20:311:20:126:074:07
6:02
#1408
25K
15.53 mi11:35:251:35:066:0714:54
6:09
#1360
30K
18.64 mi11:55:101:54:516:1019:45
6:21
#1336
20M
20.00 mi12:03:592:03:406:118:49
6:29
#1331
21M
21.00 mi12:10:392:10:206:126:40
6:40
#1293
35K
21.75 mi12:15:232:15:046:134:44
6:20
#1288
23M
23.00 mi12:23:362:23:176:148:13
6:34
#1278
24M
24.00 mi12:30:032:29:446:146:27
6:27
#1281
40K
24.85 mi12:35:362:35:176:155:33
6:29
#1282
25.2M
25.20 mi12:38:022:37:436:162:26
7:03
#1273
Finish
26.22 mi12:44:142:43:556:156:12
6:05
#1243
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1420135213521656(Top 6%)1572(Top 10%)1572(Top 28%)
10K6.21 mi3.10 mi1510-901436-841436-841608(Top 6%)1530(Top 10%)1530(Top 27%)
15K9.32 mi3.11 mi1548-381472-361472-361656(Top 6%)1572(Top 10%)1572(Top 28%)
20K12.43 mi3.11 mi1419+1291345+1271345+1271139(Top 4%)1075(Top 7%)1075(Top 19%)
Half13.11 mi0.68 mi1408+111336+91336+91270(Top 4%)1204(Top 7%)1204(Top 21%)
25K15.53 mi2.42 mi1360+481289+471289+471262(Top 4%)1195(Top 7%)1195(Top 21%)
30K18.64 mi3.11 mi1336+241261+281261+281389(Top 5%)1313(Top 8%)1313(Top 23%)
20M20.00 mi1.36 mi1331+51255+61255+61568(Top 6%)1482(Top 9%)1482(Top 26%)
21M21.00 mi1.00 mi1293+381219+361219+361101(Top 4%)1040(Top 6%)1040(Top 18%)
35K21.75 mi0.75 mi1288+51214+51214+51687(Top 6%)1581(Top 10%)1581(Top 28%)
23M23.00 mi1.25 mi1278+101203+111203+111669(Top 6%)1558(Top 10%)1558(Top 28%)
24M24.00 mi1.00 mi1281-31206-31206-31829(Top 6%)1698(Top 11%)1698(Top 30%)
40K24.85 mi0.85 mi1282-1120612061551(Top 5%)1435(Top 9%)1435(Top 25%)
25.2M25.20 mi0.35 mi1273+91197+91197+91613(Top 6%)1470(Top 9%)1470(Top 26%)
Finish26.22 mi1.02 mi1243+301168+291168+291138(Top 4%)1064(Top 7%)1064(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1656

Males

1572

M18-39

1572

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1608

Males

1530

M18-39

1530

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1656

Males

1572

M18-39

1572

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1139

Males

1075

M18-39

1075

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1270

Males

1204

M18-39

1204

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1262

Males

1195

M18-39

1195

25K→30K

15.5 - 18.6 mi

Top 5%
×9stories
+181ft-148ft

Overall

1389

Males

1313

M18-39

1313

30K→20M

18.6 - 20.0 mi

Top 6%
×5stories
+64ft-50ft

Overall

1568

Males

1482

M18-39

1482

20M→21M

20.0 - 21.0 mi

Top 4%
×8stories
+106ft-24ft

Overall

1101

Males

1040

M18-39

1040

21M→35K

21.0 - 21.8 mi

Top 6%
×7stories
+17ft-86ft

Overall

1687

Males

1581

M18-39

1581

35K→23M

21.8 - 23.0 mi

Top 6%
×5stories
+23ft-63ft

Overall

1669

Males

1558

M18-39

1558

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1829

Males

1698

M18-39

1698

24M→40K

24.0 - 24.9 mi

Top 5%
×1story
+6ft-20ft

Overall

1551

Males

1435

M18-39

1435

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1613

Males

1470

M18-39

1470

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1138

Males

1064

M18-39

1064

Passing Analysis

Category:
Athletes Passed
578
Passed By
401
Net Change
+177
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1420
5K → 10K37127-90#1420#1510
10K → 15K3775-38#1510#1548
15K → 20K1334+129#1548#1419
20K → Half143+11#1419#1408
Half → 25K6214+48#1408#1360
25K → 30K6238+24#1360#1336
30K → 20M3328+5#1336#1331
20M → 21M468+38#1331#1293
21M → 35K2116+5#1293#1288
35K → 23M3828+10#1288#1278
23M → 24M2528-3#1278#1281
24M → 40K1819-1#1281#1282
40K → 25.2M145+9#1282#1273
25.2M → Finish388+30#1273#1243
TOTALS578401+177
📊

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