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BOSTON MARATHON 2025

Kevin Koncilja

Bib: 29559•M

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:47
Rank: #20556
Start → 5K
26:47 | 8:37/mi
10K· 6.21 mi
53:46
Rank: #20662 (-106)
5K → 10K
26:59 | 8:41/mi
15K· 9.32 mi
1:22:07
Rank: #21321 (-659)
10K → 15K
28:21 | 9:07/mi
20K· 12.43 mi
1:48:46
Rank: #20684 (+637)
15K → 20K
26:39 | 8:35/mi
Half· 13.11 mi
1:54:14
Rank: #20483 (+201)
20K → Half
5:28 | 8:01/mi
25K· 15.53 mi
2:13:13
Rank: #19366 (+1117)
Half → 25K
18:59 | 7:50/mi
30K· 18.64 mi
2:38:22
Rank: #18074 (+1292)
25K → 30K
25:09 | 8:06/mi
20M
2:49:20
Rank: #17560 (+514)
30K → 20M
10:58 | 8:04/mi
21M
2:57:45
Rank: #17122 (+438)
20M → 21M
8:25 | 8:25/mi
35K· 21.75 mi
3:03:34
Rank: #16862 (+260)
21M → 35K
5:49 | 7:46/mi
23M
3:13:57
Rank: #16552 (+310)
35K → 23M
10:23 | 8:18/mi
24M
3:21:46
Rank: #16243 (+309)
23M → 24M
7:49 | 7:49/mi
40K· 24.85 mi
3:28:36
Rank: #16030 (+213)
24M → 40K
6:50 | 8:00/mi
25.2M
3:31:24
Rank: #15862 (+168)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
3:38:48
Rank: #15561 (+301)
25.2M → Finish
7:24 | 7:16/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:54:14
Pace8:43 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:44:34
Pace7:59 /mi
📊Negative Split: 8.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:5526:478:3726:47
8:37
-
10K
6.21 mi12:11:5453:468:3926:59
8:41
+0:04
15K
9.32 mi12:40:151:22:078:4928:21
9:07
+0:26
20K
12.43 mi13:06:541:48:468:4526:39
8:35
-0:32
Half
13.11 mi13:12:221:54:148:435:28
8:01
-0:34
25K
15.53 mi13:31:212:13:138:3518:59
7:50
-0:11
30K
18.64 mi13:56:302:38:228:3025:09
8:06
+0:16
20M
20.00 mi14:07:282:49:208:2810:58
8:04
-0:02
21M
21.00 mi14:15:532:57:458:288:25
8:25
+0:21
35K
21.75 mi14:21:423:03:348:265:49
7:46
-0:39
23M
23.00 mi14:32:053:13:578:2610:23
8:18
+0:32
24M
24.00 mi14:39:543:21:468:247:49
7:49
-0:29
40K
24.85 mi14:46:443:28:368:246:50
8:00
+0:11
25.2M
25.20 mi14:49:323:31:248:232:48
8:07
+0:07
Finish
26.22 mi14:56:563:38:488:217:24
7:16
-0:51

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

7:16 /mi

Average Pace

8:21 /mi

Slowest Pace

9:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

40:01

18% of race

Time at Steady Pace

1:01:36

28% of race

Time at Slower Pace

1:57:11

54% of race

Average Pace: 8:21 /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 mi11:44:5526:478:3726:47
8:37
#20556
10K
6.21 mi12:11:5453:468:3926:59
8:41
#20662
15K
9.32 mi12:40:151:22:078:4928:21
9:07
#21321
20K
12.43 mi13:06:541:48:468:4526:39
8:35
#20684
Half
13.11 mi13:12:221:54:148:435:28
8:01
#20483
25K
15.53 mi13:31:212:13:138:3518:59
7:50
#19366
30K
18.64 mi13:56:302:38:228:3025:09
8:06
#18074
20M
20.00 mi14:07:282:49:208:2810:58
8:04
#17560
21M
21.00 mi14:15:532:57:458:288:25
8:25
#17122
35K
21.75 mi14:21:423:03:348:265:49
7:46
#16862
23M
23.00 mi14:32:053:13:578:2610:23
8:18
#16552
24M
24.00 mi14:39:543:21:468:247:49
7:49
#16243
40K
24.85 mi14:46:443:28:368:246:50
8:00
#16030
25.2M
25.20 mi14:49:323:31:248:232:48
8:07
#15862
Finish
26.22 mi14:56:563:38:488:217:24
7:16
#15561
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi20556126561265622549(Top 79%)13624(Top 85%)13624(Top 241%)
10K6.21 mi3.10 mi20662-10612734-7812734-7820779(Top 73%)12811(Top 80%)12811(Top 227%)
15K9.32 mi3.11 mi21321-65913050-31613050-31622549(Top 79%)13624(Top 85%)13624(Top 241%)
20K12.43 mi3.11 mi20684+63712766+28412766+28418706(Top 66%)11904(Top 74%)11904(Top 211%)
Half13.11 mi0.68 mi20483+20112672+9412672+9415942(Top 56%)10745(Top 67%)10745(Top 190%)
25K15.53 mi2.42 mi19366+111712183+48912183+48912585(Top 44%)9111(Top 57%)9111(Top 161%)
30K18.64 mi3.11 mi18074+129211582+60111582+60112066(Top 42%)8716(Top 54%)8716(Top 154%)
20M20.00 mi1.36 mi17560+51411329+25311329+25310892(Top 38%)7985(Top 50%)7985(Top 142%)
21M21.00 mi1.00 mi17122+43811122+20711122+2079960(Top 35%)7350(Top 46%)7350(Top 130%)
35K21.75 mi0.75 mi16862+26011002+12011002+12010629(Top 37%)7698(Top 48%)7698(Top 136%)
23M23.00 mi1.25 mi16552+31010841+16110841+16112000(Top 42%)8238(Top 51%)8238(Top 146%)
24M24.00 mi1.00 mi16243+30910683+15810683+1589932(Top 35%)7141(Top 44%)7141(Top 127%)
40K24.85 mi0.85 mi16030+21310568+11510568+11510140(Top 36%)7131(Top 44%)7131(Top 126%)
25.2M25.20 mi0.35 mi15862+16810478+9010478+906620(Top 23%)5149(Top 32%)5149(Top 91%)
Finish26.22 mi1.02 mi15561+30110330+14810330+1487507(Top 26%)5640(Top 35%)5640(Top 100%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21stories
+97ft-345ft

Overall

22549

Males

13624

M18-39

13624

5K→10K

3.1 - 6.2 mi

Top 73%
×5stories
+79ft-138ft

Overall

20779

Males

12811

M18-39

12811

10K→15K

6.2 - 9.3 mi

Top 79%
×3stories
+67ft-78ft

Overall

22549

Males

13624

M18-39

13624

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

18706

Males

11904

M18-39

11904

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

15942

Males

10745

M18-39

10745

Half→25K

13.1 - 15.5 mi

Top 44%
×4stories
+66ft-88ft

Overall

12585

Males

9111

M18-39

9111

25K→30K

15.5 - 18.6 mi

Top 42%
×9stories
+181ft-148ft

Overall

12066

Males

8716

M18-39

8716

30K→20M

18.6 - 20.0 mi

Top 38%
×5stories
+64ft-50ft

Overall

10892

Males

7985

M18-39

7985

20M→21M

20.0 - 21.0 mi

Top 35%
×8stories
+106ft-24ft

Overall

9960

Males

7350

M18-39

7350

21M→35K

21.0 - 21.8 mi

Top 37%
×7stories
+17ft-86ft

Overall

10629

Males

7698

M18-39

7698

35K→23M

21.8 - 23.0 mi

Top 42%
×5stories
+23ft-63ft

Overall

12000

Males

8238

M18-39

8238

23M→24M

23.0 - 24.0 mi

Top 35%
×6stories
+12ft-82ft

Overall

9932

Males

7141

M18-39

7141

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

10140

Males

7131

M18-39

7131

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6620

Males

5149

M18-39

5149

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2stories
+22ft-21ft

Overall

7507

Males

5640

M18-39

5640

Passing Analysis

Category:
Athletes Passed
6068
Passed By
1073
Net Change
+4995
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20556
5K → 10K233339-106#20556#20662
10K → 15K64723-659#20662#21321
15K → 20K6425+637#21321#20684
20K → Half2010+201#20684#20483
Half → 25K11170+1117#20483#19366
25K → 30K12920+1292#19366#18074
30K → 20M5140+514#18074#17560
20M → 21M4380+438#17560#17122
21M → 35K2611+260#17122#16862
35K → 23M3122+310#16862#16552
23M → 24M3090+309#16552#16243
24M → 40K2141+213#16243#16030
40K → 25.2M1680+168#16030#15862
25.2M → Finish3032+301#15862#15561
TOTALS60681073+4995
📊

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