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BOSTON MARATHON 2025

Dennis Gerritse

Bib: 4150•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 13%
Masters (Masters Men)
#0 / 10463
Top 3%
Division (M40-44)
#0 / 2247
Top 11%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:39
Rank: #2590
Start → 5K
19:39 | 6:19/mi
10K· 6.21 mi
40:07
Rank: #3443 (-853)
5K → 10K
20:28 | 6:35/mi
15K· 9.32 mi
59:33
Rank: #2919 (+524)
10K → 15K
19:26 | 6:15/mi
20K· 12.43 mi
1:19:19
Rank: #2743 (+176)
15K → 20K
19:46 | 6:22/mi
Half· 13.11 mi
1:23:35
Rank: #2712 (+31)
20K → Half
4:16 | 6:15/mi
25K· 15.53 mi
1:39:01
Rank: #2593 (+119)
Half → 25K
15:26 | 6:22/mi
30K· 18.64 mi
1:59:25
Rank: #2482 (+111)
25K → 30K
20:24 | 6:34/mi
20M
2:08:26
Rank: #2425 (+57)
30K → 20M
9:01 | 6:38/mi
21M
2:15:31
Rank: #2405 (+20)
20M → 21M
7:05 | 7:05/mi
35K· 21.75 mi
2:20:18
Rank: #2351 (+54)
21M → 35K
4:47 | 6:24/mi
23M
2:28:40
Rank: #2333 (+18)
35K → 23M
8:22 | 6:41/mi
24M
2:35:03
Rank: #2277 (+56)
23M → 24M
6:23 | 6:23/mi
40K· 24.85 mi
2:40:37
Rank: #2210 (+67)
24M → 40K
5:34 | 6:31/mi
25.2M
2:43:04
Rank: #2193 (+17)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:49:29
Rank: #2167 (+26)
25.2M → Finish
6:25 | 6:18/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:23:35
Pace6:23 /mi
2nd Half
Distance13.11 mi
Time1:25:54
Pace6:33 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3419:396:1919:39
6:19
-
10K
6.21 mi10:43:0240:076:2720:28
6:35
+0:16
15K
9.32 mi11:02:2859:336:2319:26
6:15
-0:20
20K
12.43 mi11:22:141:19:196:2319:46
6:22
+0:07
Half
13.11 mi11:26:301:23:356:234:16
6:15
-0:07
25K
15.53 mi11:41:561:39:016:2215:26
6:22
+0:07
30K
18.64 mi12:02:201:59:256:2420:24
6:34
+0:12
20M
20.00 mi12:11:212:08:266:259:01
6:38
+0:04
21M
21.00 mi12:18:262:15:316:277:05
7:05
+0:27
35K
21.75 mi12:23:132:20:186:274:47
6:24
-0:41
23M
23.00 mi12:31:352:28:406:288:22
6:41
+0:17
24M
24.00 mi12:37:582:35:036:286:23
6:23
-0:18
40K
24.85 mi12:43:322:40:376:285:34
6:31
+0:08
25.2M
25.20 mi12:45:592:43:046:282:27
7:06
+0:35
Finish
26.22 mi12:52:242:49:296:286:25
6:18
-0:48

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

6:15 /mi

Average Pace

6:28 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:39:57

94% of race

Time at Steady Pace

9:32

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:28 /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 mi10:22:3419:396:1919:39
6:19
#2590
10K
6.21 mi10:43:0240:076:2720:28
6:35
#3443
15K
9.32 mi11:02:2859:336:2319:26
6:15
#2919
20K
12.43 mi11:22:141:19:196:2319:46
6:22
#2743
Half
13.11 mi11:26:301:23:356:234:16
6:15
#2712
25K
15.53 mi11:41:561:39:016:2215:26
6:22
#2593
30K
18.64 mi12:02:201:59:256:2420:24
6:34
#2482
20M
20.00 mi12:11:212:08:266:259:01
6:38
#2425
21M
21.00 mi12:18:262:15:316:277:05
7:05
#2405
35K
21.75 mi12:23:132:20:186:274:47
6:24
#2351
23M
23.00 mi12:31:352:28:406:288:22
6:41
#2333
24M
24.00 mi12:37:582:35:036:286:23
6:23
#2277
40K
24.85 mi12:43:322:40:376:285:34
6:31
#2210
25.2M
25.20 mi12:45:592:43:046:282:27
7:06
#2193
Finish
26.22 mi12:52:242:49:296:286:25
6:18
#2167
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi2590246624662118(Top 7%)2020(Top 13%)2020(Top 90%)
10K6.21 mi3.10 mi3443-8533269-8033269-8034346(Top 15%)4079(Top 25%)4079(Top 182%)
15K9.32 mi3.11 mi2919+5242782+4872782+4872118(Top 7%)2020(Top 13%)2020(Top 90%)
20K12.43 mi3.11 mi2743+1762615+1672615+1672320(Top 8%)2213(Top 14%)2213(Top 98%)
Half13.11 mi0.68 mi2712+312588+272588+272226(Top 8%)2127(Top 13%)2127(Top 95%)
25K15.53 mi2.42 mi2593+1192475+1132475+1132176(Top 8%)2071(Top 13%)2071(Top 92%)
30K18.64 mi3.11 mi2482+1112369+1062369+1062253(Top 8%)2132(Top 13%)2132(Top 95%)
20M20.00 mi1.36 mi2425+572313+562313+562168(Top 8%)2049(Top 13%)2049(Top 91%)
21M21.00 mi1.00 mi2405+202292+212292+212577(Top 9%)2399(Top 15%)2399(Top 107%)
35K21.75 mi0.75 mi2351+542240+522240+521976(Top 7%)1850(Top 11%)1850(Top 82%)
23M23.00 mi1.25 mi2333+182223+172223+172157(Top 8%)2014(Top 13%)2014(Top 90%)
24M24.00 mi1.00 mi2277+562167+562167+561597(Top 6%)1490(Top 9%)1490(Top 66%)
40K24.85 mi0.85 mi2210+672100+672100+671632(Top 6%)1508(Top 9%)1508(Top 67%)
25.2M25.20 mi0.35 mi2193+172084+162084+161784(Top 6%)1623(Top 10%)1623(Top 72%)
Finish26.22 mi1.02 mi2167+262056+282056+281867(Top 7%)1722(Top 11%)1722(Top 77%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21stories
+97ft-345ft

Overall

2118

Males

2020

M40-44

2020

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4346

Males

4079

M40-44

4079

10K→15K

6.2 - 9.3 mi

Top 7%
×3stories
+67ft-78ft

Overall

2118

Males

2020

M40-44

2020

15K→20K

9.3 - 12.4 mi

Top 8%
×5stories
+106ft-86ft

Overall

2320

Males

2213

M40-44

2213

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2226

Males

2127

M40-44

2127

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

2176

Males

2071

M40-44

2071

25K→30K

15.5 - 18.6 mi

Top 8%
×9stories
+181ft-148ft

Overall

2253

Males

2132

M40-44

2132

30K→20M

18.6 - 20.0 mi

Top 8%
×5stories
+64ft-50ft

Overall

2168

Males

2049

M40-44

2049

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2577

Males

2399

M40-44

2399

21M→35K

21.0 - 21.8 mi

Top 7%
×7stories
+17ft-86ft

Overall

1976

Males

1850

M40-44

1850

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2157

Males

2014

M40-44

2014

23M→24M

23.0 - 24.0 mi

Top 6%
×6stories
+12ft-82ft

Overall

1597

Males

1490

M40-44

1490

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1632

Males

1508

M40-44

1508

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1784

Males

1623

M40-44

1623

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

1867

Males

1722

M40-44

1722

Passing Analysis

Category:
Athletes Passed
1479
Passed By
1056
Net Change
+423
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2590
5K → 10K6859-853#2590#3443
10K → 15K5240+524#3443#2919
15K → 20K19317+176#2919#2743
20K → Half365+31#2743#2712
Half → 25K13213+119#2712#2593
25K → 30K14837+111#2593#2482
30K → 20M7114+57#2482#2425
20M → 21M4828+20#2425#2405
21M → 35K6511+54#2405#2351
35K → 23M4931+18#2351#2333
23M → 24M6711+56#2333#2277
24M → 40K703+67#2277#2210
40K → 25.2M247+17#2210#2193
25.2M → Finish4620+26#2193#2167
TOTALS14791056+423
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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