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BOSTON MARATHON 2025

Jeremy Stack

Bib: 6814•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 16%
Gender (Male)
#0 / 16105
Top 27%
Masters (Masters Men)
#0 / 10463
Top 13%
Division (M40-44)
#0 / 2247
Top 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:59
Rank: #5924
Start → 5K
6:45/mi
20:59 split
10K· 6.21 mi
41:30
Rank: #5171 (+753)
5K → 10K
6:36/mi
20:31 split
15K· 9.32 mi
1:02:09
Rank: #4938 (+233)
10K → 15K
6:39/mi
20:39 split
20K· 12.43 mi
1:23:12
Rank: #4943 (-5)
15K → 20K
6:47/mi
21:03 split
Half· 13.11 mi
1:27:44
Rank: #4932 (+11)
20K → Half
6:39/mi
4:32 split
25K· 15.53 mi
1:44:09
Rank: #4838 (+94)
Half → 25K
6:46/mi
16:25 split
30K· 18.64 mi
2:05:45
Rank: #4703 (+135)
25K → 30K
6:57/mi
21:36 split
20M
2:15:17
Rank: #4633 (+70)
30K → 20M
7:01/mi
9:32 split
21M
2:22:42
Rank: #4573 (+60)
20M → 21M
7:25/mi
7:25 split
35K· 21.75 mi
2:27:49
Rank: #4534 (+39)
21M → 35K
6:50/mi
5:07 split
23M
2:36:52
Rank: #4540 (-6)
35K → 23M
7:14/mi
9:03 split
24M
2:43:53
Rank: #4537 (+3)
23M → 24M
7:01/mi
7:01 split
40K· 24.85 mi
2:50:01
Rank: #4541 (-4)
24M → 40K
7:10/mi
6:08 split
25.2M
2:52:45
Rank: #4564 (-23)
40K → 25.2M
7:56/mi
2:44 split
Finish· 26.22 mi
2:59:57
Rank: #4674 (-110)
25.2M → Finish
7:04/mi
7:12 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:27:44
Pace6:42 /mi
2nd Half
Distance13.11 mi
Time1:32:13
Pace7:02 /mi
📊Positive Split: 5.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:1920:596:4520:59
6:45
-
10K
6.21 mi10:47:5041:306:4120:31
6:36
-0:09
15K
9.32 mi11:08:291:02:096:4020:39
6:39
+0:03
20K
12.43 mi11:29:321:23:126:4221:03
6:47
+0:08
Half
13.11 mi11:34:041:27:446:424:32
6:39
-0:08
25K
15.53 mi11:50:291:44:096:4216:25
6:46
+0:07
30K
18.64 mi12:12:052:05:456:4521:36
6:57
+0:11
20M
20.00 mi12:21:372:15:176:469:32
7:01
+0:04
21M
21.00 mi12:29:022:22:426:487:25
7:25
+0:24
35K
21.75 mi12:34:092:27:496:485:07
6:50
-0:35
23M
23.00 mi12:43:122:36:526:499:03
7:14
+0:24
24M
24.00 mi12:50:132:43:536:507:01
7:01
-0:13
40K
24.85 mi12:56:212:50:016:506:08
7:10
+0:09
25.2M
25.20 mi12:59:052:52:456:512:44
7:56
+0:46
Finish
26.22 mi13:06:172:59:576:527:12
7:04
-0:52

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

6:36 /mi

Average Pace

6:52 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:23:06

46% of race

Time at Steady Pace

1:11:31

40% of race

Time at Slower Pace

25:20

14% of race

Average Pace: 6:52 /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 mi10:27:1920:596:4520:59
6:45
#5924
10K
6.21 mi10:47:5041:306:4120:31
6:36
#5171
15K
9.32 mi11:08:291:02:096:4020:39
6:39
#4938
20K
12.43 mi11:29:321:23:126:4221:03
6:47
#4943
Half
13.11 mi11:34:041:27:446:424:32
6:39
#4932
25K
15.53 mi11:50:291:44:096:4216:25
6:46
#4838
30K
18.64 mi12:12:052:05:456:4521:36
6:57
#4703
20M
20.00 mi12:21:372:15:176:469:32
7:01
#4633
21M
21.00 mi12:29:022:22:426:487:25
7:25
#4573
35K
21.75 mi12:34:092:27:496:485:07
6:50
#4534
23M
23.00 mi12:43:122:36:526:499:03
7:14
#4540
24M
24.00 mi12:50:132:43:536:507:01
7:01
#4537
40K
24.85 mi12:56:212:50:016:506:08
7:10
#4541
25.2M
25.20 mi12:59:052:52:456:512:44
7:56
#4564
Finish
26.22 mi13:06:172:59:576:527:12
7:04
#4674
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5924545054504613(Top 16%)4317(Top 27%)4317(Top 192%)
10K6.21 mi3.10 mi5171+7534811+6394811+6394491(Top 16%)4207(Top 26%)4207(Top 187%)
15K9.32 mi3.11 mi4938+2334607+2044607+2044613(Top 16%)4317(Top 27%)4317(Top 192%)
20K12.43 mi3.11 mi4943-54606+14606+15045(Top 18%)4653(Top 29%)4653(Top 207%)
Half13.11 mi0.68 mi4932+114594+124594+124750(Top 17%)4410(Top 27%)4410(Top 196%)
25K15.53 mi2.42 mi4838+944498+964498+964632(Top 16%)4269(Top 27%)4269(Top 190%)
30K18.64 mi3.11 mi4703+1354364+1344364+1344393(Top 15%)4021(Top 25%)4021(Top 179%)
20M20.00 mi1.36 mi4633+704296+684296+684177(Top 15%)3816(Top 24%)3816(Top 170%)
21M21.00 mi1.00 mi4573+604243+534243+534181(Top 15%)3760(Top 23%)3760(Top 167%)
35K21.75 mi0.75 mi4534+394201+424201+424319(Top 15%)3848(Top 24%)3848(Top 171%)
23M23.00 mi1.25 mi4540-64188+134188+135014(Top 18%)4321(Top 27%)4321(Top 192%)
24M24.00 mi1.00 mi4537+34181+74181+74700(Top 17%)4040(Top 25%)4040(Top 180%)
40K24.85 mi0.85 mi4541-44172+94172+94871(Top 17%)4115(Top 26%)4115(Top 183%)
25.2M25.20 mi0.35 mi4564-234190-184190-185487(Top 19%)4405(Top 27%)4405(Top 196%)
Finish26.22 mi1.02 mi4674-1104283-934283-936119(Top 22%)4795(Top 30%)4795(Top 213%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 16%
×21story building
+97ft-345ft

Overall

4613

Males

4317

M40-44

4317

5K→10K

3.1 - 6.2 mi

Top 16%
×5story building
+79ft-138ft

Overall

4491

Males

4207

M40-44

4207

10K→15K

6.2 - 9.3 mi

Top 16%
×3story building
+67ft-78ft

Overall

4613

Males

4317

M40-44

4317

15K→20K

9.3 - 12.4 mi

Top 18%
×5story building
+106ft-86ft

Overall

5045

Males

4653

M40-44

4653

20K→Half

12.4 - 13.1 mi

Top 17%
×2story building
+19ft-37ft

Overall

4750

Males

4410

M40-44

4410

Half→25K

13.1 - 15.5 mi

Top 16%
×4story building
+66ft-88ft

Overall

4632

Males

4269

M40-44

4269

25K→30K

15.5 - 18.6 mi

Top 15%
×9story building
+181ft-148ft

Overall

4393

Males

4021

M40-44

4021

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

4177

Males

3816

M40-44

3816

20M→21M

20.0 - 21.0 mi

Top 15%
×8story building
+106ft-24ft

Overall

4181

Males

3760

M40-44

3760

21M→35K

21.0 - 21.8 mi

Top 15%
×7story building
+17ft-86ft

Overall

4319

Males

3848

M40-44

3848

35K→23M

21.8 - 23.0 mi

Top 18%
×5story building
+23ft-63ft

Overall

5014

Males

4321

M40-44

4321

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4700

Males

4040

M40-44

4040

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4871

Males

4115

M40-44

4115

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5487

Males

4405

M40-44

4405

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

6119

Males

4795

M40-44

4795

Passing Analysis

Category:
Athletes Passed
2057
Passed By
807
Net Change
+1250
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5924
5K → 10K77017+753#5924#5171
10K → 15K27542+233#5171#4938
15K → 20K133138-5#4938#4943
20K → Half2716+11#4943#4932
Half → 25K14753+94#4932#4838
25K → 30K22792+135#4838#4703
30K → 20M10535+70#4703#4633
20M → 21M10141+60#4633#4573
21M → 35K6021+39#4573#4534
35K → 23M7177-6#4534#4540
23M → 24M6057+3#4540#4537
24M → 40K4953-4#4537#4541
40K → 25.2M1841-23#4541#4564
25.2M → Finish14124-110#4564#4674
TOTALS2057807+1250
📊

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