All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Piotr Gasiorowski

Bib: 15190•M

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M50-54)
#0 / 1868
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
23:44
3.11 mi
Rank: #13997
Start → 5K
23:44 | 7:39/mi
10K
48:21
6.21 mi
Rank: #15309 (-1312)
5K → 10K
24:37 | 7:56/mi
15K
1:13:02
9.32 mi
Rank: #15724 (-415)
10K → 15K
24:41 | 7:57/mi
20K
1:38:15
12.43 mi
Rank: #16056 (-332)
15K → 20K
25:13 | 8:07/mi
HALF
1:43:40
13.11 mi
Rank: #16088 (-32)
20K → HALF
5:25 | 7:57/mi
25K
2:03:12
15.53 mi
Rank: #16020 (+68)
HALF → 25K
19:32 | 8:04/mi
30K
2:29:02
18.64 mi
Rank: #15952 (+68)
25K → 30K
25:50 | 8:19/mi
20M
2:40:23
20.00 mi
Rank: #15885 (+67)
30K → 20M
11:21 | 8:22/mi
21M
2:49:33
21.00 mi
Rank: #15933 (-48)
20M → 21M
9:10 | 9:10/mi
35K
2:55:58
21.75 mi
Rank: #15982 (-49)
21M → 35K
6:25 | 8:35/mi
23M
3:06:56
23.00 mi
Rank: #16035 (-53)
35K → 23M
10:58 | 8:46/mi
24M
3:15:33
24.00 mi
Rank: #16098 (-63)
23M → 24M
8:37 | 8:37/mi
40K
3:23:04
24.85 mi
Rank: #16131 (-33)
24M → 40K
7:31 | 8:48/mi
25.2M
3:26:18
25.20 mi
Rank: #16143 (-12)
40K → 25.2M
3:14 | 9:23/mi
FINISH
3:34:57
26.22 mi
Rank: #16214 (-71)
25.2M → FINISH
8:39 | 8:30/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:43:40
Pace7:55 /mi
2nd Half
Distance13.11 mi
Time1:51:17
Pace8:30 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:5623:447:3923:44
7:39
-
10K
6.21 mi11:19:3348:217:4724:37
7:56
+0:17
15K
9.32 mi11:44:141:13:027:5124:41
7:57
+0:01
20K
12.43 mi12:09:271:38:157:5525:13
8:07
+0:10
HALF
13.11 mi12:14:521:43:407:555:25
7:57
-0:10
25K
15.53 mi12:34:242:03:127:5619:32
8:04
+0:07
30K
18.64 mi13:00:142:29:028:0025:50
8:19
+0:15
20M
20.00 mi13:11:352:40:238:0211:21
8:22
+0:03
21M
21.00 mi13:20:452:49:338:059:10
9:10
+0:48
35K
21.75 mi13:27:102:55:588:066:25
8:35
-0:35
23M
23.00 mi13:38:083:06:568:0810:58
8:46
+0:11
24M
24.00 mi13:46:453:15:338:098:37
8:37
-0:09
40K
24.85 mi13:54:163:23:048:117:31
8:48
+0:11
25.2M
25.20 mi13:57:303:26:188:123:14
9:23
+0:35
FINISH
26.22 mi14:06:093:34:578:138:39
8:30
-0:53

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

8:12 /mi

Slowest Pace

9:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:03:12

57% of race

Time at Steady Pace

52:15

24% of race

Time at Slower Pace

39:30

18% of race

Average Pace: 8:12 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:54:5623:447:3923:44
7:39
#13997
10K
6.21 mi11:19:3348:217:4724:37
7:56
#15309
15K
9.32 mi11:44:141:13:027:5124:41
7:57
#15724
20K
12.43 mi12:09:271:38:157:5525:13
8:07
#16056
HALF
13.11 mi12:14:521:43:407:555:25
7:57
#16088
25K
15.53 mi12:34:242:03:127:5619:32
8:04
#16020
30K
18.64 mi13:00:142:29:028:0025:50
8:19
#15952
20M
20.00 mi13:11:352:40:238:0211:21
8:22
#15885
21M
21.00 mi13:20:452:49:338:059:10
9:10
#15933
35K
21.75 mi13:27:102:55:588:066:25
8:35
#15982
23M
23.00 mi13:38:083:06:568:0810:58
8:46
#16035
24M
24.00 mi13:46:453:15:338:098:37
8:37
#16098
40K
24.85 mi13:54:163:23:048:117:31
8:48
#16131
25.2M
25.20 mi13:57:303:26:188:123:14
9:23
#16143
FINISH
26.22 mi14:06:093:34:578:138:39
8:30
#16214
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi139979870987016554(Top 57%)10840(Top 66%)10840(Top 580%)
10K6.21 mi3.10 mi15309-131210340-47010340-47016649(Top 57%)10875(Top 67%)10875(Top 582%)
15K9.32 mi3.11 mi15724-41510490-15010490-15016554(Top 57%)10840(Top 66%)10840(Top 580%)
20K12.43 mi3.11 mi16056-33210602-11210602-11216958(Top 58%)10970(Top 67%)10970(Top 587%)
HALF13.11 mi0.68 mi16088-3210610-810610-816658(Top 57%)10872(Top 67%)10872(Top 582%)
25K15.53 mi2.42 mi16020+6810573+3710573+3715800(Top 54%)10432(Top 64%)10432(Top 558%)
30K18.64 mi3.11 mi15952+6810509+6410509+6415717(Top 54%)10288(Top 63%)10288(Top 551%)
20M20.00 mi1.36 mi15885+6710467+4210467+4215255(Top 53%)9989(Top 61%)9989(Top 535%)
21M21.00 mi1.00 mi15933-4810469-210469-216966(Top 58%)10672(Top 65%)10672(Top 571%)
35K21.75 mi0.75 mi15982-4910472-310472-317963(Top 62%)11021(Top 67%)11021(Top 590%)
23M23.00 mi1.25 mi16035-5310464+810464+817236(Top 59%)10618(Top 65%)10618(Top 568%)
24M24.00 mi1.00 mi16098-6310479-1510479-1517549(Top 60%)10722(Top 66%)10722(Top 574%)
40K24.85 mi0.85 mi16131-33104791047917317(Top 60%)10564(Top 65%)10564(Top 566%)
25.2M25.20 mi0.35 mi16143-1210469+1010469+1016670(Top 57%)10278(Top 63%)10278(Top 550%)
FINISH26.22 mi1.02 mi16214-7110486-1710486-1718075(Top 62%)10917(Top 67%)10917(Top 584%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21
+97ft-345ft

Overall

16554

Males

10840

M50-54

10840

5K→10K

3.1 - 6.2 mi

Top 57%
×5
+79ft-138ft

Overall

16649

Males

10875

M50-54

10875

10K→15K

6.2 - 9.3 mi

Top 57%
×3
+67ft-78ft

Overall

16554

Males

10840

M50-54

10840

15K→20K

9.3 - 12.4 mi

Top 58%
×5
+106ft-86ft

Overall

16958

Males

10970

M50-54

10970

20K→HALF

12.4 - 13.1 mi

Top 57%
×2
+19ft-37ft

Overall

16658

Males

10872

M50-54

10872

HALF→25K

13.1 - 15.5 mi

Top 54%
×4
+66ft-88ft

Overall

15800

Males

10432

M50-54

10432

25K→30K

15.5 - 18.6 mi

Top 54%
×9
+181ft-148ft

Overall

15717

Males

10288

M50-54

10288

30K→20M

18.6 - 20.0 mi

Top 53%
×5
+64ft-50ft

Overall

15255

Males

9989

M50-54

9989

20M→21M

20.0 - 21.0 mi

Top 58%
×8
+106ft-24ft

Overall

16966

Males

10672

M50-54

10672

21M→35K

21.0 - 21.8 mi

Top 62%
×7
+17ft-86ft

Overall

17963

Males

11021

M50-54

11021

35K→23M

21.8 - 23.0 mi

Top 59%
×5
+23ft-63ft

Overall

17236

Males

10618

M50-54

10618

23M→24M

23.0 - 24.0 mi

Top 60%
×6
+12ft-82ft

Overall

17549

Males

10722

M50-54

10722

24M→40K

24.0 - 24.9 mi

Top 60%
×1
+6ft-20ft

Overall

17317

Males

10564

M50-54

10564

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1
+13ft-16ft

Overall

16670

Males

10278

M50-54

10278

25.2M→FINISH

25.2 - 26.2 mi

Top 62%
×2
+22ft-21ft

Overall

18075

Males

10917

M50-54

10917

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1135
Passed By
3352
Net Change
-2217
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13997
5K → 10K381350-1312#13997#15309
10K → 15K89504-415#15309#15724
15K → 20K91423-332#15724#16056
20K → HALF1749-32#16056#16088
HALF → 25K182114+68#16088#16020
25K → 30K215147+68#16020#15952
30K → 20M12053+67#15952#15885
20M → 21M84132-48#15885#15933
21M → 35K4998-49#15933#15982
35K → 23M83136-53#15982#16035
23M → 24M39102-63#16035#16098
24M → 40K5891-33#16098#16131
40K → 25.2M3042-12#16131#16143
25.2M → FINISH40111-71#16143#16214
TOTALS11353352-2217
📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

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

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

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