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BOSTON MARATHON 2025

Gus Gerulskis

Bib: 27555•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
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
11:04/mi
34:23
↑ 97↓ 3451.5%
10K· 6.21 mi
11:49/mi
1:11:07
↑ 79↓ 1380.4%
15K· 9.32 mi
11:23/mi
1:46:30
↑ 67↓ 78
20K· 12.43 mi
12:43/mi
2:26:01
↑ 106↓ 860.1%
Half· 13.11 mi
11:44/mi
2:34:01
↑ 19↓ 370.5%
25K· 15.53 mi
14:55/mi
3:10:10
↑ 66↓ 880.2%
30K· 18.64 mi
15:20/mi
3:57:47
↑ 181↓ 1480.2%
20M
14:46/mi
4:17:51
↑ 64↓ 500.2%
21M
16:11/mi
4:34:02
↑ 106↓ 241.6%
35K· 21.75 mi
13:49/mi
4:44:22
↑ 17↓ 861.7%
23M
13:39/mi
5:01:28
↑ 23↓ 630.6%
24M
13:51/mi
5:15:19
↓ 821.3%
40K· 24.85 mi
17:03/mi
5:29:54
↓ 200.3%
25.2M
16:00/mi
5:35:25
↑ 13↓ 160.2%
Finish· 26.22 mi
12:47/mi
5:48:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:34:01
Pace11:45 /mi
2nd Half
Distance13.11 mi
Time3:14:26
Pace14:50 /mi
📊Positive Split: 26.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:5334:2311:0434:23
11:04
-
10K
6.21 mi12:28:371:11:0711:2736:44
11:49
+0:45
15K
9.32 mi13:04:001:46:3011:2635:23
11:23
-0:26
20K
12.43 mi13:43:312:26:0111:4539:31
12:43
+1:20
Half
13.11 mi13:51:312:34:0111:458:00
11:44
-0:59
25K
15.53 mi14:27:403:10:1012:1536:09
14:55
+3:11
30K
18.64 mi15:15:173:57:4712:4547:37
15:20
+0:25
20M
20.00 mi15:35:214:17:5112:5420:04
14:46
-0:34
21M
21.00 mi15:51:324:34:0213:0316:11
16:11
+1:25
35K
21.75 mi16:01:524:44:2213:0510:20
13:49
-2:22
23M
23.00 mi16:18:585:01:2813:0617:06
13:39
-0:10
24M
24.00 mi16:32:495:15:1913:0813:51
13:51
+0:12
40K
24.85 mi16:47:245:29:5413:1614:35
17:03
+3:12
25.2M
25.20 mi16:52:555:35:2513:195:31
16:00
-1:03
Finish
26.22 mi17:05:575:48:2713:1813:02
12:47
-3:13

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

11:04 /mi

Average Pace

13:18 /mi

Slowest Pace

17:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:47:03

48% of race

Time at Steady Pace

41:17

12% of race

Time at Slower Pace

2:20:07

40% of race

Average Pace: 13:17 /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 mi11:51:5334:2311:0434:23
11:04
#27625
10K
6.21 mi12:28:371:11:0711:2736:44
11:49
#27776
15K
9.32 mi13:04:001:46:3011:2635:23
11:23
#27560
20K
12.43 mi13:43:312:26:0111:4539:31
12:43
#27619
Half
13.11 mi13:51:312:34:0111:458:00
11:44
#27599
25K
15.53 mi14:27:403:10:1012:1536:09
14:55
#27789
30K
18.64 mi15:15:173:57:4712:4547:37
15:20
#27909
20M
20.00 mi15:35:214:17:5112:5420:04
14:46
#27927
21M
21.00 mi15:51:324:34:0213:0316:11
16:11
#27945
35K
21.75 mi16:01:524:44:2213:0510:20
13:49
#27941
23M
23.00 mi16:18:585:01:2813:0617:06
13:39
#27910
24M
24.00 mi16:32:495:15:1913:0813:51
13:51
#27903
40K
24.85 mi16:47:245:29:5413:1614:35
17:03
#27978
25.2M
25.20 mi16:52:555:35:2513:195:31
16:00
#27976
Finish
26.22 mi17:05:575:48:2713:1813:02
12:47
#27966
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi27625158351583527133(Top 96%)15609(Top 97%)15609(Top 1240%)
10K6.21 mi3.10 mi27776-15115892-5715892-5727857(Top 98%)15910(Top 99%)15910(Top 1264%)
15K9.32 mi3.11 mi27560+21615797+9515797+9527133(Top 96%)15609(Top 97%)15609(Top 1240%)
20K12.43 mi3.11 mi27619-5915807-1015807-1027668(Top 97%)15798(Top 98%)15798(Top 1255%)
Half13.11 mi0.68 mi27599+2015798+915798+927253(Top 96%)15623(Top 97%)15623(Top 1241%)
25K15.53 mi2.42 mi27789-19015871-7315871-7328215(Top 99%)16012(Top 99%)16012(Top 1272%)
30K18.64 mi3.11 mi27909-12015908-3715908-3728139(Top 99%)15958(Top 99%)15958(Top 1268%)
20M20.00 mi1.36 mi27927-18159081590827769(Top 98%)15746(Top 98%)15746(Top 1251%)
21M21.00 mi1.00 mi27945-1815910-215910-227888(Top 98%)15819(Top 98%)15819(Top 1256%)
35K21.75 mi0.75 mi27941+415905+515905+527586(Top 97%)15620(Top 97%)15620(Top 1241%)
23M23.00 mi1.25 mi27910+3115886+1915886+1927034(Top 95%)15343(Top 95%)15343(Top 1219%)
24M24.00 mi1.00 mi27903+715872+1415872+1427558(Top 97%)15580(Top 97%)15580(Top 1237%)
40K24.85 mi0.85 mi27978-7515909-3715909-3728250(Top 99%)16001(Top 99%)16001(Top 1271%)
25.2M25.20 mi0.35 mi27976+215904+515904+527710(Top 98%)15656(Top 97%)15656(Top 1244%)
Finish26.22 mi1.02 mi27966+1015899+515899+527498(Top 97%)15563(Top 97%)15563(Top 1236%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 96%
×21story building
+97ft-345ft

Overall

27133

Males

15609

M60-64

15609

5K→10K

3.1 - 6.2 mi

Top 98%
×5story building
+79ft-138ft

Overall

27857

Males

15910

M60-64

15910

10K→15K

6.2 - 9.3 mi

Top 96%
×3story building
+67ft-78ft

Overall

27133

Males

15609

M60-64

15609

15K→20K

9.3 - 12.4 mi

Top 97%
×5story building
+106ft-86ft

Overall

27668

Males

15798

M60-64

15798

20K→Half

12.4 - 13.1 mi

Top 96%
×2story building
+19ft-37ft

Overall

27253

Males

15623

M60-64

15623

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

28215

Males

16012

M60-64

16012

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

28139

Males

15958

M60-64

15958

30K→20M

18.6 - 20.0 mi

Top 98%
×5story building
+64ft-50ft

Overall

27769

Males

15746

M60-64

15746

20M→21M

20.0 - 21.0 mi

Top 98%
×8story building
+106ft-24ft

Overall

27888

Males

15819

M60-64

15819

21M→35K

21.0 - 21.8 mi

Top 97%
×7story building
+17ft-86ft

Overall

27586

Males

15620

M60-64

15620

35K→23M

21.8 - 23.0 mi

Top 95%
×5story building
+23ft-63ft

Overall

27034

Males

15343

M60-64

15343

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

27558

Males

15580

M60-64

15580

24M→40K

24.0 - 24.9 mi

Top 99%
×1story
+6ft-20ft

Overall

28250

Males

16001

M60-64

16001

40K→25.2M

24.9 - 25.2 mi

Top 98%
×1story
+13ft-16ft

Overall

27710

Males

15656

M60-64

15656

25.2M→Finish

25.2 - 26.2 mi

Top 97%
×2story building
+22ft-21ft

Overall

27498

Males

15563

M60-64

15563

Passing Analysis

Category:
Athletes Passed
502
Passed By
843
Net Change
-341
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27625
5K → 10K47198-151#27625#27776
10K → 15K2237+216#27776#27560
15K → 20K49108-59#27560#27619
20K → Half266+20#27619#27599
Half → 25K13203-190#27599#27789
25K → 30K23143-120#27789#27909
30K → 20M1634-18#27909#27927
20M → 21M1230-18#27927#27945
21M → 35K1410+4#27945#27941
35K → 23M332+31#27941#27910
23M → 24M2316+7#27910#27903
24M → 40K075-75#27903#27978
40K → 25.2M75+2#27978#27976
25.2M → Finish166+10#27976#27966
TOTALS502843-341
📊

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