Boston Marathon logo
BOSTON MARATHON 2024

Jacek Koman

Bib: 12576•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Division (M50-54)
#0 / 1935
Race Day Weather
55°/45°F
scattered 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
7:49/mi
24:17
↑ 97↓ 3451.5%
10K· 6.21 mi
8:30/mi
50:43
↑ 79↓ 1380.4%
15K· 9.32 mi
9:19/mi
1:19:40
↑ 67↓ 78
20K· 12.43 mi
10:39/mi
1:52:45
↑ 106↓ 860.1%
Half· 13.11 mi
9:49/mi
1:59:27
↑ 19↓ 370.5%
25K· 15.53 mi
10:50/mi
2:25:44
↑ 66↓ 880.2%
30K· 18.64 mi
12:26/mi
3:04:23
↑ 181↓ 1480.2%
20M
12:11/mi
3:20:57
↑ 64↓ 500.2%
21M
12:18/mi
3:33:15
↑ 106↓ 241.6%
35K· 21.75 mi
11:55/mi
3:42:10
↑ 17↓ 861.7%
23M
11:52/mi
3:57:02
↑ 23↓ 630.6%
24M
12:08/mi
4:09:10
↓ 821.3%
40K· 24.85 mi
14:41/mi
4:21:43
↓ 200.3%
25.2M
14:04/mi
4:26:34
↑ 13↓ 160.2%
Finish· 26.22 mi
12:39/mi
4:39:27
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:27
Pace9:07 /mi
2nd Half
Distance13.11 mi
Time2:40:00
Pace12:12 /mi
📊Positive Split: 33.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:0324:177:4924:17
7:49
-
10K
6.21 mi11:19:2950:438:1026:26
8:30
+0:41
15K
9.32 mi11:48:261:19:408:3328:57
9:19
+0:49
20K
12.43 mi12:21:311:52:459:0433:05
10:39
+1:20
Half
13.11 mi12:28:131:59:279:076:42
9:49
-0:50
25K
15.53 mi12:54:302:25:449:2326:17
10:50
+1:01
30K
18.64 mi13:33:093:04:239:5338:39
12:26
+1:36
20M
20.00 mi13:49:433:20:5710:0316:34
12:11
-0:15
21M
21.00 mi14:02:013:33:1510:0912:18
12:18
+0:07
35K
21.75 mi14:10:563:42:1010:138:55
11:55
-0:23
23M
23.00 mi14:25:483:57:0210:1814:52
11:52
-0:03
24M
24.00 mi14:37:564:09:1010:2312:08
12:08
+0:16
40K
24.85 mi14:50:294:21:4310:3212:33
14:41
+2:33
25.2M
25.20 mi14:55:204:26:3410:354:51
14:04
-0:37
Finish
26.22 mi15:08:134:39:2710:4012:53
12:39
-1:25

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

7:49 /mi

Average Pace

10:40 /mi

Slowest Pace

14:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:44

52% of race

Time at Steady Pace

1:56:19

42% of race

Time at Slower Pace

17:24

6% of race

Average Pace: 10:39 /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 mi10:53:0324:177:4924:17
7:49
#13216
10K
6.21 mi11:19:2950:438:1026:26
8:30
#15515
15K
9.32 mi11:48:261:19:408:3328:57
9:19
#17388
20K
12.43 mi12:21:311:52:459:0433:05
10:39
#19269
Half
13.11 mi12:28:131:59:279:076:42
9:49
#19382
25K
15.53 mi12:54:302:25:449:2326:17
10:50
#19796
30K
18.64 mi13:33:093:04:239:5338:39
12:26
#20495
20M
20.00 mi13:49:433:20:5710:0316:34
12:11
#20582
21M
21.00 mi14:02:013:33:1510:0912:18
12:18
#20516
35K
21.75 mi14:10:563:42:1010:138:55
11:55
#20569
23M
23.00 mi14:25:483:57:0210:1814:52
11:52
#20567
24M
24.00 mi14:37:564:09:1010:2312:08
12:08
#20619
40K
24.85 mi14:50:294:21:4310:3212:33
14:41
#20837
25.2M
25.20 mi14:55:204:26:3410:354:51
14:04
#20833
Finish
26.22 mi15:08:134:39:2710:4012:53
12:39
#20986
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi132169347934720072(Top 79%)12203(Top 84%)12203(Top 631%)
10K6.21 mi3.10 mi15515-229910226-87910226-87917324(Top 68%)10968(Top 75%)10968(Top 567%)
15K9.32 mi3.11 mi17388-187310979-75310979-75320072(Top 79%)12203(Top 84%)12203(Top 631%)
20K12.43 mi3.11 mi19269-188111782-80311782-80321965(Top 86%)13030(Top 89%)13030(Top 673%)
Half13.11 mi0.68 mi19382-11311838-5611838-5620991(Top 82%)12544(Top 86%)12544(Top 648%)
25K15.53 mi2.42 mi19796-41412017-17912017-17921162(Top 83%)12556(Top 86%)12556(Top 649%)
30K18.64 mi3.11 mi20495-69912304-28712304-28722600(Top 88%)13107(Top 90%)13107(Top 677%)
20M20.00 mi1.36 mi20582-8712307-312307-321672(Top 85%)12532(Top 86%)12532(Top 648%)
21M21.00 mi1.00 mi20516+6612251+5612251+5619457(Top 76%)11369(Top 78%)11369(Top 588%)
35K21.75 mi0.75 mi20569-5312250+112250+121644(Top 85%)12432(Top 85%)12432(Top 642%)
23M23.00 mi1.25 mi20567+212223+2712223+2720454(Top 80%)11789(Top 81%)11789(Top 609%)
24M24.00 mi1.00 mi20619-5212224-112224-121696(Top 85%)12371(Top 85%)12371(Top 639%)
40K24.85 mi0.85 mi20837-21812310-8612310-8624287(Top 95%)13748(Top 94%)13748(Top 710%)
25.2M25.20 mi0.35 mi20833+412312-212312-221679(Top 85%)12324(Top 85%)12324(Top 637%)
Finish26.22 mi1.02 mi20986-15312370-5812370-5824020(Top 94%)13580(Top 93%)13580(Top 702%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

20072

Males

12203

M50-54

12203

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

17324

Males

10968

M50-54

10968

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

20072

Males

12203

M50-54

12203

15K→20K

9.3 - 12.4 mi

Top 86%
×5story building
+106ft-86ft

Overall

21965

Males

13030

M50-54

13030

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

20991

Males

12544

M50-54

12544

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

21162

Males

12556

M50-54

12556

25K→30K

15.5 - 18.6 mi

Top 88%
×9story building
+181ft-148ft

Overall

22600

Males

13107

M50-54

13107

30K→20M

18.6 - 20.0 mi

Top 85%
×5story building
+64ft-50ft

Overall

21672

Males

12532

M50-54

12532

20M→21M

20.0 - 21.0 mi

Top 76%
×8story building
+106ft-24ft

Overall

19457

Males

11369

M50-54

11369

21M→35K

21.0 - 21.8 mi

Top 85%
×7story building
+17ft-86ft

Overall

21644

Males

12432

M50-54

12432

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

20454

Males

11789

M50-54

11789

23M→24M

23.0 - 24.0 mi

Top 85%
×6story building
+12ft-82ft

Overall

21696

Males

12371

M50-54

12371

24M→40K

24.0 - 24.9 mi

Top 95%
×1story
+6ft-20ft

Overall

24287

Males

13748

M50-54

13748

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

21679

Males

12324

M50-54

12324

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

24020

Males

13580

M50-54

13580

Passing Analysis

Category:
Athletes Passed
559
Passed By
8329
Net Change
-7770
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13216
5K → 10K122311-2299#13216#15515
10K → 15K141887-1873#15515#17388
15K → 20K211902-1881#17388#19269
20K → Half12125-113#19269#19382
Half → 25K80494-414#19382#19796
25K → 30K31730-699#19796#20495
30K → 20M61148-87#20495#20582
20M → 21M10943+66#20582#20516
21M → 35K3285-53#20516#20569
35K → 23M8381+2#20569#20567
23M → 24M4294-52#20567#20619
24M → 40K12230-218#20619#20837
40K → 25.2M2319+4#20837#20833
25.2M → Finish27180-153#20833#20986
TOTALS5598329-7770
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing