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BOSTON MARATHON 2025

Spencer Kruse

Bib: 3113•M

CO

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 5%
Gender (Male)
#0 / 16105
Top 8%
Division (M18-39)
#0 / 5642
Top 21%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:08
Rank: #3677
Start → 5K
20:08 | 6:29/mi
10K· 6.21 mi
39:43
Rank: #2992 (+685)
5K → 10K
19:35 | 6:18/mi
15K· 9.32 mi
59:12
Rank: #2685 (+307)
10K → 15K
19:29 | 6:16/mi
20K· 12.43 mi
1:18:28
Rank: #2329 (+356)
15K → 20K
19:16 | 6:12/mi
Half· 13.11 mi
1:22:31
Rank: #2236 (+93)
20K → Half
4:03 | 5:56/mi
25K· 15.53 mi
1:37:23
Rank: #2031 (+205)
Half → 25K
14:52 | 6:08/mi
30K· 18.64 mi
1:56:45
Rank: #1776 (+255)
25K → 30K
19:22 | 6:14/mi
20M
2:05:23
Rank: #1694 (+82)
30K → 20M
8:38 | 6:21/mi
21M
2:12:07
Rank: #1633 (+61)
20M → 21M
6:44 | 6:44/mi
35K· 21.75 mi
2:16:42
Rank: #1592 (+41)
21M → 35K
4:35 | 6:08/mi
23M
2:24:48
Rank: #1534 (+58)
35K → 23M
8:06 | 6:28/mi
24M
2:31:06
Rank: #1491 (+43)
23M → 24M
6:18 | 6:18/mi
40K· 24.85 mi
2:36:33
Rank: #1449 (+42)
24M → 40K
5:27 | 6:22/mi
25.2M
2:39:00
Rank: #1448 (+1)
40K → 25.2M
2:27 | 7:06/mi
Finish· 26.22 mi
2:45:28
Rank: #1449 (-1)
25.2M → Finish
6:28 | 6:21/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:22:31
Pace6:18 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:22:57
Pace6:20 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:4420:086:2920:08
6:29
-
10K
6.21 mi10:41:1939:436:2419:35
6:18
-0:11
15K
9.32 mi11:00:4859:126:2119:29
6:16
-0:02
20K
12.43 mi11:20:041:18:286:1919:16
6:12
-0:04
Half
13.11 mi11:24:071:22:316:184:03
5:56
-0:16
25K
15.53 mi11:38:591:37:236:1614:52
6:08
+0:12
30K
18.64 mi11:58:211:56:456:1619:22
6:14
+0:06
20M
20.00 mi12:06:592:05:236:168:38
6:21
+0:07
21M
21.00 mi12:13:432:12:076:176:44
6:44
+0:23
35K
21.75 mi12:18:182:16:426:174:35
6:08
-0:36
23M
23.00 mi12:26:242:24:486:188:06
6:28
+0:20
24M
24.00 mi12:32:422:31:066:186:18
6:18
-0:10
40K
24.85 mi12:38:092:36:336:185:27
6:22
+0:04
25.2M
25.20 mi12:40:362:39:006:192:27
7:06
+0:44
Finish
26.22 mi12:47:042:45:286:196:28
6:21
-0:45

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

5:56 /mi

Average Pace

6:19 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:36:17

94% of race

Time at Steady Pace

6:44

4% of race

Time at Slower Pace

2:27

1% of race

Average Pace: 6:19 /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 mi10:21:4420:086:2920:08
6:29
#3677
10K
6.21 mi10:41:1939:436:2419:35
6:18
#2992
15K
9.32 mi11:00:4859:126:2119:29
6:16
#2685
20K
12.43 mi11:20:041:18:286:1919:16
6:12
#2329
Half
13.11 mi11:24:071:22:316:184:03
5:56
#2236
25K
15.53 mi11:38:591:37:236:1614:52
6:08
#2031
30K
18.64 mi11:58:211:56:456:1619:22
6:14
#1776
20M
20.00 mi12:06:592:05:236:168:38
6:21
#1694
21M
21.00 mi12:13:432:12:076:176:44
6:44
#1633
35K
21.75 mi12:18:182:16:426:174:35
6:08
#1592
23M
23.00 mi12:26:242:24:486:188:06
6:28
#1534
24M
24.00 mi12:32:422:31:066:186:18
6:18
#1491
40K
24.85 mi12:38:092:36:336:185:27
6:22
#1449
25.2M
25.20 mi12:40:362:39:006:192:27
7:06
#1448
Finish
26.22 mi12:47:042:45:286:196:28
6:21
#1449
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3677348334832195(Top 8%)2091(Top 13%)2091(Top 37%)
10K6.21 mi3.10 mi2992+6852846+6372846+6372436(Top 9%)2329(Top 14%)2329(Top 41%)
15K9.32 mi3.11 mi2685+3072560+2862560+2862195(Top 8%)2091(Top 13%)2091(Top 37%)
20K12.43 mi3.11 mi2329+3562222+3382222+3381590(Top 6%)1510(Top 9%)1510(Top 27%)
Half13.11 mi0.68 mi2236+932136+862136+86960(Top 3%)910(Top 6%)910(Top 16%)
25K15.53 mi2.42 mi2031+2051936+2001936+2001215(Top 4%)1148(Top 7%)1148(Top 20%)
30K18.64 mi3.11 mi1776+2551691+2451691+2451020(Top 4%)960(Top 6%)960(Top 17%)
20M20.00 mi1.36 mi1694+821608+831608+831106(Top 4%)1043(Top 6%)1043(Top 18%)
21M21.00 mi1.00 mi1633+611547+611547+611305(Top 5%)1234(Top 8%)1234(Top 22%)
35K21.75 mi0.75 mi1592+411508+391508+391024(Top 4%)965(Top 6%)965(Top 17%)
23M23.00 mi1.25 mi1534+581452+561452+561359(Top 5%)1278(Top 8%)1278(Top 23%)
24M24.00 mi1.00 mi1491+431410+421410+421309(Top 5%)1224(Top 8%)1224(Top 22%)
40K24.85 mi0.85 mi1449+421368+421368+421171(Top 4%)1093(Top 7%)1093(Top 19%)
25.2M25.20 mi0.35 mi1448+1136813681769(Top 6%)1608(Top 10%)1608(Top 29%)
Finish26.22 mi1.02 mi1449-11367+11367+12058(Top 7%)1885(Top 12%)1885(Top 33%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2195

Males

2091

M18-39

2091

5K→10K

3.1 - 6.2 mi

Top 9%
×5stories
+79ft-138ft

Overall

2436

Males

2329

M18-39

2329

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2195

Males

2091

M18-39

2091

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1590

Males

1510

M18-39

1510

20K→Half

12.4 - 13.1 mi

Top 3%
×2stories
+19ft-37ft

Overall

960

Males

910

M18-39

910

Half→25K

13.1 - 15.5 mi

Top 4%
×4stories
+66ft-88ft

Overall

1215

Males

1148

M18-39

1148

25K→30K

15.5 - 18.6 mi

Top 4%
×9stories
+181ft-148ft

Overall

1020

Males

960

M18-39

960

30K→20M

18.6 - 20.0 mi

Top 4%
×5stories
+64ft-50ft

Overall

1106

Males

1043

M18-39

1043

20M→21M

20.0 - 21.0 mi

Top 5%
×8stories
+106ft-24ft

Overall

1305

Males

1234

M18-39

1234

21M→35K

21.0 - 21.8 mi

Top 4%
×7stories
+17ft-86ft

Overall

1024

Males

965

M18-39

965

35K→23M

21.8 - 23.0 mi

Top 5%
×5stories
+23ft-63ft

Overall

1359

Males

1278

M18-39

1278

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1309

Males

1224

M18-39

1224

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

1171

Males

1093

M18-39

1093

40K→25.2M

24.9 - 25.2 mi

Top 6%
×1story
+13ft-16ft

Overall

1769

Males

1608

M18-39

1608

25.2M→Finish

25.2 - 26.2 mi

Top 7%
×2stories
+22ft-21ft

Overall

2058

Males

1885

M18-39

1885

Passing Analysis

Category:
Athletes Passed
2316
Passed By
88
Net Change
+2228
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3677
5K → 10K6916+685#3677#2992
10K → 15K3114+307#2992#2685
15K → 20K3571+356#2685#2329
20K → Half930+93#2329#2236
Half → 25K2061+205#2236#2031
25K → 30K2594+255#2031#1776
30K → 20M853+82#1776#1694
20M → 21M698+61#1694#1633
21M → 35K487+41#1633#1592
35K → 23M7113+58#1592#1534
23M → 24M485+43#1534#1491
24M → 40K508+42#1491#1449
40K → 25.2M65+1#1449#1448
25.2M → Finish2223-1#1448#1449
TOTALS231688+2228
📊

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