Boston Marathon logo
BOSTON MARATHON 2024

Sjaak Kuin

Bib: 11925•M

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 25550
Top 41%
Gender (Male)
#0 / 14578
Masters (Masters Men)
#0 / 9729
Top 43%
Division (M50-54)
#0 / 1935
Top 46%
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
8:00/mi
24:50
↑ 97↓ 3451.5%
10K· 6.21 mi
8:05/mi
49:58
↑ 79↓ 1380.4%
15K· 9.32 mi
7:50/mi
1:14:17
↑ 67↓ 78
20K· 12.43 mi
8:17/mi
1:40:01
↑ 106↓ 860.1%
Half· 13.11 mi
8:14/mi
1:45:38
↑ 19↓ 370.5%
25K· 15.53 mi
8:13/mi
2:05:33
↑ 66↓ 880.2%
30K· 18.64 mi
8:04/mi
2:30:37
↑ 181↓ 1480.2%
20M
8:01/mi
2:41:31
↑ 64↓ 500.2%
21M
8:33/mi
2:50:04
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:55:53
↑ 17↓ 861.7%
23M
8:14/mi
3:06:11
↑ 23↓ 630.6%
24M
8:34/mi
3:14:45
↓ 821.3%
40K· 24.85 mi
8:45/mi
3:22:14
↓ 200.3%
25.2M
9:40/mi
3:25:34
↑ 13↓ 160.2%
Finish· 26.22 mi
8:34/mi
3:34:18
↑ 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
Time1:45:38
Pace8:03 /mi
2nd Half
Distance13.11 mi
Time1:48:40
Pace8:17 /mi
📊Positive Split: 2.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5224:508:0024:50
8:00
-
10K
6.21 mi11:18:0049:588:0225:08
8:05
+0:05
15K
9.32 mi11:42:191:14:177:5824:19
7:50
-0:15
20K
12.43 mi12:08:031:40:018:0325:44
8:17
+0:27
Half
13.11 mi12:13:401:45:388:035:37
8:14
-0:03
25K
15.53 mi12:33:352:05:338:0519:55
8:13
-0:01
30K
18.64 mi12:58:392:30:378:0525:04
8:04
-0:09
20M
20.00 mi13:09:332:41:318:0510:54
8:01
-0:03
21M
21.00 mi13:18:062:50:048:068:33
8:33
+0:32
35K
21.75 mi13:23:552:55:538:055:49
7:46
-0:47
23M
23.00 mi13:34:133:06:118:0610:18
8:14
+0:28
24M
24.00 mi13:42:473:14:458:078:34
8:34
+0:20
40K
24.85 mi13:50:163:22:148:087:29
8:45
+0:11
25.2M
25.20 mi13:53:363:25:348:093:20
9:40
+0:55
Finish
26.22 mi14:02:203:34:188:118:44
8:34
-1:06

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

7:46 /mi

Average Pace

8:11 /mi

Slowest Pace

9:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

54:58

26% of race

Time at Steady Pace

2:02:40

57% of race

Time at Slower Pace

36:40

17% of race

Average Pace: 8:10 /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 mi10:52:5224:508:0024:50
8:00
#14592
10K
6.21 mi11:18:0049:588:0225:08
8:05
#14714
15K
9.32 mi11:42:191:14:177:5824:19
7:50
#13846
20K
12.43 mi12:08:031:40:018:0325:44
8:17
#13749
Half
13.11 mi12:13:401:45:388:035:37
8:14
#13749
25K
15.53 mi12:33:352:05:338:0519:55
8:13
#13272
30K
18.64 mi12:58:392:30:378:0525:04
8:04
#12211
20M
20.00 mi13:09:332:41:318:0510:54
8:01
#11723
21M
21.00 mi13:18:062:50:048:068:33
8:33
#11325
35K
21.75 mi13:23:552:55:538:055:49
7:46
#11073
23M
23.00 mi13:34:133:06:118:0610:18
8:14
#10749
24M
24.00 mi13:42:473:14:458:078:34
8:34
#10678
40K
24.85 mi13:50:163:22:148:087:29
8:45
#10587
25.2M
25.20 mi13:53:363:25:348:093:20
9:40
#10559
Finish
26.22 mi14:02:203:34:188:118:44
8:34
#10600
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi145929868986812126(Top 47%)8779(Top 60%)8779(Top 454%)
10K6.21 mi3.10 mi14714-1229917-499917-4914790(Top 58%)9950(Top 68%)9950(Top 514%)
15K9.32 mi3.11 mi13846+8689555+3629555+36212126(Top 47%)8779(Top 60%)8779(Top 454%)
20K12.43 mi3.11 mi13749+979505+509505+5013601(Top 53%)9380(Top 64%)9380(Top 485%)
Half13.11 mi0.68 mi137499504+19504+114134(Top 55%)9535(Top 65%)9535(Top 493%)
25K15.53 mi2.42 mi13272+4779283+2219283+22111443(Top 45%)8210(Top 56%)8210(Top 424%)
30K18.64 mi3.11 mi12211+10618719+5648719+5648269(Top 32%)6370(Top 44%)6370(Top 329%)
20M20.00 mi1.36 mi11723+4888453+2668453+2666906(Top 27%)5386(Top 37%)5386(Top 278%)
21M21.00 mi1.00 mi11325+3988195+2588195+2586461(Top 25%)4960(Top 34%)4960(Top 256%)
35K21.75 mi0.75 mi11073+2528036+1598036+1596469(Top 25%)4958(Top 34%)4958(Top 256%)
23M23.00 mi1.25 mi10749+3247819+2177819+2176951(Top 27%)5063(Top 35%)5063(Top 262%)
24M24.00 mi1.00 mi10678+717738+817738+819834(Top 38%)6460(Top 44%)6460(Top 334%)
40K24.85 mi0.85 mi10587+917642+967642+969627(Top 38%)6224(Top 43%)6224(Top 322%)
25.2M25.20 mi0.35 mi10559+287608+347608+349414(Top 37%)6045(Top 41%)6045(Top 312%)
Finish26.22 mi1.02 mi10600-417586+227586+2211889(Top 47%)7452(Top 51%)7452(Top 385%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21story building
+97ft-345ft

Overall

12126

Males

8779

M50-54

8779

5K→10K

3.1 - 6.2 mi

Top 58%
×5story building
+79ft-138ft

Overall

14790

Males

9950

M50-54

9950

10K→15K

6.2 - 9.3 mi

Top 47%
×3story building
+67ft-78ft

Overall

12126

Males

8779

M50-54

8779

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

13601

Males

9380

M50-54

9380

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

14134

Males

9535

M50-54

9535

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

11443

Males

8210

M50-54

8210

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

8269

Males

6370

M50-54

6370

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

6906

Males

5386

M50-54

5386

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6461

Males

4960

M50-54

4960

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

6469

Males

4958

M50-54

4958

35K→23M

21.8 - 23.0 mi

Top 27%
×5story building
+23ft-63ft

Overall

6951

Males

5063

M50-54

5063

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

9834

Males

6460

M50-54

6460

24M→40K

24.0 - 24.9 mi

Top 38%
×1story
+6ft-20ft

Overall

9627

Males

6224

M50-54

6224

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9414

Males

6045

M50-54

6045

25.2M→Finish

25.2 - 26.2 mi

Top 47%
×2story building
+22ft-21ft

Overall

11889

Males

7452

M50-54

7452

Passing Analysis

Category:
Athletes Passed
4897*
Passed By
905
Net Change
+3992
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14592
5K → 10K238360-122#14592#14714
10K → 15K88012+868#14714#13846
15K → 20K293196+97#13846#13749
20K → Half40400#13749#13749
Half → 25K50326+477#13749#13272
25K → 30K10643+1061#13272#12211
30K → 20M4902+488#12211#11723
20M → 21M4024+398#11723#11325
21M → 35K2564+252#11325#11073
35K → 23M3284+324#11073#10749
23M → 24M14170+71#10749#10678
24M → 40K139*48+91#10678#10587
40K → 25.2M5224+28#10587#10559
25.2M → Finish71112-41#10559#10600
TOTALS4897*905+3992

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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