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BOSTON MARATHON 2025

Joseph Gurczak

Bib: 18511•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 41%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Top 44%
Division (M55-59)
#0 / 1648
Top 28%
Race Day Weather
50°/40°F
broken 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
7:53/mi
24:28
↑ 97↓ 3451.5%
10K· 6.21 mi
7:38/mi
48:11
↑ 79↓ 1380.4%
15K· 9.32 mi
7:44/mi
1:12:14
↑ 67↓ 78
20K· 12.43 mi
7:52/mi
1:36:41
↑ 106↓ 860.1%
Half· 13.11 mi
7:42/mi
1:41:56
↑ 19↓ 370.5%
25K· 15.53 mi
7:45/mi
2:00:44
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:25:14
↑ 181↓ 1480.2%
20M
7:58/mi
2:36:04
↑ 64↓ 500.2%
21M
8:13/mi
2:44:17
↑ 106↓ 241.6%
35K· 21.75 mi
7:48/mi
2:50:07
↑ 17↓ 861.7%
23M
7:56/mi
3:00:03
↑ 23↓ 630.6%
24M
7:48/mi
3:07:51
↓ 821.3%
40K· 24.85 mi
7:50/mi
3:14:33
↓ 200.3%
25.2M
8:27/mi
3:17:28
↑ 13↓ 160.2%
Finish· 26.22 mi
7:29/mi
3:25:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:56
Pace7:47 /mi
2nd Half
Distance13.11 mi
Time1:43:10
Pace7:52 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:2024:287:5324:28
7:53
-
10K
6.21 mi11:39:0348:117:4523:43
7:38
-0:15
15K
9.32 mi12:03:061:12:147:4524:03
7:44
+0:06
20K
12.43 mi12:27:331:36:417:4724:27
7:52
+0:08
Half
13.11 mi12:32:481:41:567:475:15
7:42
-0:10
25K
15.53 mi12:51:362:00:447:4618:48
7:45
+0:03
30K
18.64 mi13:16:062:25:147:4724:30
7:53
+0:08
20M
20.00 mi13:26:562:36:047:4810:50
7:58
+0:05
21M
21.00 mi13:35:092:44:177:498:13
8:13
+0:15
35K
21.75 mi13:40:592:50:077:495:50
7:48
-0:25
23M
23.00 mi13:50:553:00:037:509:56
7:56
+0:08
24M
24.00 mi13:58:433:07:517:507:48
7:48
-0:08
40K
24.85 mi14:05:253:14:337:506:42
7:50
+0:02
25.2M
25.20 mi14:08:203:17:287:502:55
8:27
+0:37
Finish
26.22 mi14:15:583:25:067:507:38
7:29
-0:58

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

7:29 /mi

Average Pace

7:50 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:22:11

99% of race

Time at Steady Pace

2:55

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:49 /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 mi11:15:2024:287:5324:28
7:53
#15445
10K
6.21 mi11:39:0348:117:4523:43
7:38
#14351
15K
9.32 mi12:03:061:12:147:4524:03
7:44
#14190
20K
12.43 mi12:27:331:36:417:4724:27
7:52
#14083
Half
13.11 mi12:32:481:41:567:475:15
7:42
#14035
25K
15.53 mi12:51:362:00:447:4618:48
7:45
#13638
30K
18.64 mi13:16:062:25:147:4724:30
7:53
#13004
20M
20.00 mi13:26:562:36:047:4810:50
7:58
#12753
21M
21.00 mi13:35:092:44:177:498:13
8:13
#12486
35K
21.75 mi13:40:592:50:077:495:50
7:48
#12389
23M
23.00 mi13:50:553:00:037:509:56
7:56
#12186
24M
24.00 mi13:58:433:07:517:507:48
7:48
#12068
40K
24.85 mi14:05:253:14:337:506:42
7:50
#11918
25.2M
25.20 mi14:08:203:17:287:502:55
8:27
#11853
Finish
26.22 mi14:15:583:25:067:507:38
7:29
#11714
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15445105921059213843(Top 49%)9874(Top 61%)9874(Top 599%)
10K6.21 mi3.10 mi14351+109410154+43810154+43813294(Top 47%)9700(Top 60%)9700(Top 589%)
15K9.32 mi3.11 mi14190+16110062+9210062+9213843(Top 49%)9874(Top 61%)9874(Top 599%)
20K12.43 mi3.11 mi14083+1079989+739989+7313824(Top 49%)9785(Top 61%)9785(Top 594%)
Half13.11 mi0.68 mi14035+489970+199970+1913279(Top 47%)9579(Top 59%)9579(Top 581%)
25K15.53 mi2.42 mi13638+3979761+2099761+20911957(Top 42%)8829(Top 55%)8829(Top 536%)
30K18.64 mi3.11 mi13004+6349415+3469415+34610525(Top 37%)7950(Top 49%)7950(Top 482%)
20M20.00 mi1.36 mi12753+2519274+1419274+14110251(Top 36%)7669(Top 48%)7669(Top 465%)
21M21.00 mi1.00 mi12486+2679124+1509124+1508685(Top 31%)6649(Top 41%)6649(Top 403%)
35K21.75 mi0.75 mi12389+979050+749050+7410780(Top 38%)7762(Top 48%)7762(Top 471%)
23M23.00 mi1.25 mi12186+2038923+1278923+1279533(Top 34%)7004(Top 43%)7004(Top 425%)
24M24.00 mi1.00 mi12068+1188829+948829+949799(Top 34%)7070(Top 44%)7070(Top 429%)
40K24.85 mi0.85 mi11918+1508716+1138716+1139015(Top 32%)6539(Top 41%)6539(Top 397%)
25.2M25.20 mi0.35 mi11853+658675+418675+418548(Top 30%)6233(Top 39%)6233(Top 378%)
Finish26.22 mi1.02 mi11714+1398570+1058570+1059110(Top 32%)6504(Top 40%)6504(Top 395%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

13843

Males

9874

M55-59

9874

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

13294

Males

9700

M55-59

9700

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

13843

Males

9874

M55-59

9874

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

13824

Males

9785

M55-59

9785

20K→Half

12.4 - 13.1 mi

Top 47%
×2story building
+19ft-37ft

Overall

13279

Males

9579

M55-59

9579

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11957

Males

8829

M55-59

8829

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

10525

Males

7950

M55-59

7950

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

10251

Males

7669

M55-59

7669

20M→21M

20.0 - 21.0 mi

Top 31%
×8story building
+106ft-24ft

Overall

8685

Males

6649

M55-59

6649

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10780

Males

7762

M55-59

7762

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9533

Males

7004

M55-59

7004

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

9799

Males

7070

M55-59

7070

24M→40K

24.0 - 24.9 mi

Top 32%
×1story
+6ft-20ft

Overall

9015

Males

6539

M55-59

6539

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8548

Males

6233

M55-59

6233

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

9110

Males

6504

M55-59

6504

Passing Analysis

Category:
Athletes Passed
4223
Passed By
492
Net Change
+3731
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15445
5K → 10K113844+1094#15445#14351
10K → 15K284123+161#14351#14190
15K → 20K261154+107#14190#14083
20K → Half6315+48#14083#14035
Half → 25K41215+397#14035#13638
25K → 30K65218+634#13638#13004
30K → 20M27019+251#13004#12753
20M → 21M2736+267#12753#12486
21M → 35K10912+97#12486#12389
35K → 23M21916+203#12389#12186
23M → 24M14527+118#12186#12068
24M → 40K16414+150#12068#11918
40K → 25.2M7510+65#11918#11853
25.2M → Finish15819+139#11853#11714
TOTALS4223492+3731
📊

Passing Visuals

Category:
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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