Boston Marathon logo
BOSTON MARATHON 2024

Piotr Starzynski

Bib: 9137•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 (M45-49)
#0 / 2218
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:45
Rank: #11876
Start → 5K
7:39/mi
23:45 split
10K· 6.21 mi
48:27
Rank: #12865 (-989)
5K → 10K
7:57/mi
24:42 split
15K· 9.32 mi
1:13:53
Rank: #13515 (-650)
10K → 15K
8:11/mi
25:26 split
20K· 12.43 mi
1:40:23
Rank: #13921 (-406)
15K → 20K
8:32/mi
26:30 split
Half· 13.11 mi
1:46:19
Rank: #14076 (-155)
20K → Half
8:42/mi
5:56 split
25K· 15.53 mi
2:08:49
Rank: #14593 (-517)
Half → 25K
9:17/mi
22:30 split
30K· 18.64 mi
2:40:58
Rank: #15536 (-943)
25K → 30K
10:21/mi
32:09 split
20M
2:56:32
Rank: #16160 (-624)
30K → 20M
11:27/mi
15:34 split
21M
3:09:32
Rank: #16660 (-500)
20M → 21M
13:00/mi
13:00 split
35K· 21.75 mi
3:18:15
Rank: #16935 (-275)
21M → 35K
11:39/mi
8:43 split
23M
3:33:57
Rank: #17446 (-511)
35K → 23M
12:32/mi
15:42 split
24M
3:46:58
Rank: #17826 (-380)
23M → 24M
13:01/mi
13:01 split
40K· 24.85 mi
3:58:27
Rank: #18119 (-293)
24M → 40K
13:26/mi
11:29 split
25.2M
4:03:18
Rank: #18186 (-67)
40K → 25.2M
14:04/mi
4:51 split
Finish· 26.22 mi
4:15:06
Rank: #18376 (-190)
25.2M → Finish
11:35/mi
11:48 split

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
Time1:46:19
Pace8:07 /mi
2nd Half
Distance13.11 mi
Time2:28:47
Pace11:21 /mi
📊Positive Split: 39.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4323:457:3923:45
7:39
-
10K
6.21 mi11:14:2548:277:4824:42
7:57
+0:18
15K
9.32 mi11:39:511:13:537:5625:26
8:11
+0:14
20K
12.43 mi12:06:211:40:238:0526:30
8:32
+0:21
Half
13.11 mi12:12:171:46:198:075:56
8:42
+0:10
25K
15.53 mi12:34:472:08:498:1822:30
9:17
+0:35
30K
18.64 mi13:06:562:40:588:3832:09
10:21
+1:04
20M
20.00 mi13:22:302:56:328:5015:34
11:27
+1:06
21M
21.00 mi13:35:303:09:329:0213:00
13:00
+1:33
35K
21.75 mi13:44:133:18:159:078:43
11:39
-1:21
23M
23.00 mi13:59:553:33:579:1815:42
12:32
+0:53
24M
24.00 mi14:12:563:46:589:2713:01
13:01
+0:29
40K
24.85 mi14:24:253:58:279:3611:29
13:26
+0:25
25.2M
25.20 mi14:29:164:03:189:394:51
14:04
+0:38
Finish
26.22 mi14:41:044:15:069:4411:48
11:35
-2:29

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

7:39 /mi

Average Pace

9:44 /mi

Slowest Pace

14:04 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:40:58

63% of race

Time at Steady Pace

36:05

14% of race

Time at Slower Pace

58:03

23% of race

Average Pace: 9:44 /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 mi10:49:4323:457:3923:45
7:39
#11876
10K
6.21 mi11:14:2548:277:4824:42
7:57
#12865
15K
9.32 mi11:39:511:13:537:5625:26
8:11
#13515
20K
12.43 mi12:06:211:40:238:0526:30
8:32
#13921
Half
13.11 mi12:12:171:46:198:075:56
8:42
#14076
25K
15.53 mi12:34:472:08:498:1822:30
9:17
#14593
30K
18.64 mi13:06:562:40:588:3832:09
10:21
#15536
20M
20.00 mi13:22:302:56:328:5015:34
11:27
#16160
21M
21.00 mi13:35:303:09:329:0213:00
13:00
#16660
35K
21.75 mi13:44:133:18:159:078:43
11:39
#16935
23M
23.00 mi13:59:553:33:579:1815:42
12:32
#17446
24M
24.00 mi14:12:563:46:589:2713:01
13:01
#17826
40K
24.85 mi14:24:253:58:279:3611:29
13:26
#18119
25.2M
25.20 mi14:29:164:03:189:394:51
14:04
#18186
Finish
26.22 mi14:41:044:15:069:4411:48
11:35
#18376
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi118768796879614643(Top 57%)9861(Top 68%)9861(Top 445%)
10K6.21 mi3.10 mi12865-9899183-3879183-38713824(Top 54%)9550(Top 66%)9550(Top 431%)
15K9.32 mi3.11 mi13515-6509422-2399422-23914643(Top 57%)9861(Top 68%)9861(Top 445%)
20K12.43 mi3.11 mi13921-4069575-1539575-15314953(Top 59%)9941(Top 68%)9941(Top 448%)
Half13.11 mi0.68 mi14076-1559635-609635-6016804(Top 66%)10668(Top 73%)10668(Top 481%)
25K15.53 mi2.42 mi14593-5179810-1759810-17516728(Top 65%)10578(Top 73%)10578(Top 477%)
30K18.64 mi3.11 mi15536-94310104-29410104-29418373(Top 72%)11095(Top 76%)11095(Top 500%)
20M20.00 mi1.36 mi16160-62410323-21910323-21920297(Top 79%)11876(Top 81%)11876(Top 535%)
21M21.00 mi1.00 mi16660-50010497-17410497-17420714(Top 81%)11999(Top 82%)11999(Top 541%)
35K21.75 mi0.75 mi16935-27510585-8810585-8821153(Top 83%)12185(Top 84%)12185(Top 549%)
23M23.00 mi1.25 mi17446-51110788-20310788-20321763(Top 85%)12472(Top 86%)12472(Top 562%)
24M24.00 mi1.00 mi17826-38010917-12910917-12923096(Top 90%)13097(Top 90%)13097(Top 590%)
40K24.85 mi0.85 mi18119-29311037-12011037-12022895(Top 90%)12972(Top 89%)12972(Top 585%)
25.2M25.20 mi0.35 mi18186-6711059-2211059-2221670(Top 85%)12315(Top 84%)12315(Top 555%)
Finish26.22 mi1.02 mi18376-19011127-6811127-6822566(Top 88%)12791(Top 88%)12791(Top 577%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

14643

Males

9861

M45-49

9861

5K→10K

3.1 - 6.2 mi

Top 54%
×5story building
+79ft-138ft

Overall

13824

Males

9550

M45-49

9550

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

14643

Males

9861

M45-49

9861

15K→20K

9.3 - 12.4 mi

Top 59%
×5story building
+106ft-86ft

Overall

14953

Males

9941

M45-49

9941

20K→Half

12.4 - 13.1 mi

Top 66%
×2story building
+19ft-37ft

Overall

16804

Males

10668

M45-49

10668

Half→25K

13.1 - 15.5 mi

Top 65%
×4story building
+66ft-88ft

Overall

16728

Males

10578

M45-49

10578

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

18373

Males

11095

M45-49

11095

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

20297

Males

11876

M45-49

11876

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

20714

Males

11999

M45-49

11999

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

21153

Males

12185

M45-49

12185

35K→23M

21.8 - 23.0 mi

Top 85%
×5story building
+23ft-63ft

Overall

21763

Males

12472

M45-49

12472

23M→24M

23.0 - 24.0 mi

Top 90%
×6story building
+12ft-82ft

Overall

23096

Males

13097

M45-49

13097

24M→40K

24.0 - 24.9 mi

Top 90%
×1story
+6ft-20ft

Overall

22895

Males

12972

M45-49

12972

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

21670

Males

12315

M45-49

12315

25.2M→Finish

25.2 - 26.2 mi

Top 88%
×2story building
+22ft-21ft

Overall

22566

Males

12791

M45-49

12791

Passing Analysis

Category:
Athletes Passed
630
Passed By
7130
Net Change
-6500
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11876
5K → 10K621051-989#11876#12865
10K → 15K76726-650#12865#13515
15K → 20K144550-406#13515#13921
20K → Half14169-155#13921#14076
Half → 25K102619-517#14076#14593
25K → 30K701013-943#14593#15536
30K → 20M22646-624#15536#16160
20M → 21M12512-500#16160#16660
21M → 35K25300-275#16660#16935
35K → 23M21532-511#16935#17446
23M → 24M11391-380#17446#17826
24M → 40K21314-293#17826#18119
40K → 25.2M1279-67#18119#18186
25.2M → Finish38228-190#18186#18376
TOTALS6307130-6500
📊

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing