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BOSTON MARATHON 2025

David Spak

Bib: 12162•M

IL

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
Top 27%
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
7:55/mi
24:35
↑ 97↓ 3451.5%
10K· 6.21 mi
8:03/mi
49:35
↑ 79↓ 1380.4%
15K· 9.32 mi
8:02/mi
1:14:31
↑ 67↓ 78
20K· 12.43 mi
8:01/mi
1:39:26
↑ 106↓ 860.1%
Half· 13.11 mi
7:52/mi
1:44:48
↑ 19↓ 370.5%
25K· 15.53 mi
8:10/mi
2:04:35
↑ 66↓ 880.2%
30K· 18.64 mi
8:34/mi
2:31:13
↑ 181↓ 1480.2%
20M
8:49/mi
2:43:12
↑ 64↓ 500.2%
21M
9:14/mi
2:52:26
↑ 106↓ 241.6%
35K· 21.75 mi
8:32/mi
2:58:49
↑ 17↓ 861.7%
23M
8:47/mi
3:09:49
↑ 23↓ 630.6%
24M
8:44/mi
3:18:33
↓ 821.3%
40K· 24.85 mi
8:49/mi
3:26:05
↓ 200.3%
25.2M
9:31/mi
3:29:22
↑ 13↓ 160.2%
Finish· 26.22 mi
8:31/mi
3:38:03
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:48
Pace8:00 /mi
2nd Half
Distance13.11 mi
Time1:53:15
Pace8:38 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4524:357:5524:35
7:55
-
10K
6.21 mi11:17:4549:357:5925:00
8:03
+0:08
15K
9.32 mi11:42:411:14:318:0024:56
8:02
-0:01
20K
12.43 mi12:07:361:39:268:0024:55
8:01
-0:01
Half
13.11 mi12:12:581:44:488:005:22
7:52
-0:09
25K
15.53 mi12:32:452:04:358:0119:47
8:10
+0:18
30K
18.64 mi12:59:232:31:138:0726:38
8:34
+0:24
20M
20.00 mi13:11:222:43:128:1011:59
8:49
+0:15
21M
21.00 mi13:20:362:52:268:139:14
9:14
+0:25
35K
21.75 mi13:26:592:58:498:136:23
8:32
-0:42
23M
23.00 mi13:37:593:09:498:1511:00
8:47
+0:15
24M
24.00 mi13:46:433:18:338:168:44
8:44
-0:03
40K
24.85 mi13:54:153:26:058:177:32
8:49
+0:05
25.2M
25.20 mi13:57:323:29:228:183:17
9:31
+0:42
Finish
26.22 mi14:06:133:38:038:198:41
8:31
-1:00

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

7:52 /mi

Average Pace

8:19 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:35

57% of race

Time at Steady Pace

50:26

23% of race

Time at Slower Pace

43:02

20% of race

Average Pace: 8:19 /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 mi10:52:4524:357:5524:35
7:55
#15807
10K
6.21 mi11:17:4549:357:5925:00
8:03
#16334
15K
9.32 mi11:42:411:14:318:0024:56
8:02
#16286
20K
12.43 mi12:07:361:39:268:0024:55
8:01
#15929
Half
13.11 mi12:12:581:44:488:005:22
7:52
#15878
25K
15.53 mi12:32:452:04:358:0119:47
8:10
#15713
30K
18.64 mi12:59:232:31:138:0726:38
8:34
#15607
20M
20.00 mi13:11:222:43:128:1011:59
8:49
#15549
21M
21.00 mi13:20:362:52:268:139:14
9:14
#15471
35K
21.75 mi13:26:592:58:498:136:23
8:32
#15477
23M
23.00 mi13:37:593:09:498:1511:00
8:47
#15403
24M
24.00 mi13:46:433:18:338:168:44
8:44
#15414
40K
24.85 mi13:54:153:26:058:177:32
8:49
#15388
25.2M
25.20 mi13:57:323:29:228:183:17
9:31
#15366
Finish
26.22 mi14:06:133:38:038:198:41
8:31
#15385
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi15807107321073216220(Top 57%)10906(Top 68%)10906(Top 866%)
10K6.21 mi3.10 mi16334-52710947-21510947-21516804(Top 59%)11162(Top 69%)11162(Top 887%)
15K9.32 mi3.11 mi16286+4810934+1310934+1316220(Top 57%)10906(Top 68%)10906(Top 866%)
20K12.43 mi3.11 mi15929+35710778+15610778+15615073(Top 53%)10350(Top 64%)10350(Top 822%)
Half13.11 mi0.68 mi15878+5110748+3010748+3014772(Top 52%)10247(Top 64%)10247(Top 814%)
25K15.53 mi2.42 mi15713+16510665+8310665+8315027(Top 53%)10237(Top 64%)10237(Top 813%)
30K18.64 mi3.11 mi15607+10610564+10110564+10115213(Top 54%)10149(Top 63%)10149(Top 806%)
20M20.00 mi1.36 mi15549+5810504+6010504+6015751(Top 55%)10257(Top 64%)10257(Top 815%)
21M21.00 mi1.00 mi15471+7810429+7510429+7514783(Top 52%)9697(Top 60%)9697(Top 770%)
35K21.75 mi0.75 mi15477-610420+910420+915642(Top 55%)10010(Top 62%)10010(Top 795%)
23M23.00 mi1.25 mi15403+7410343+7710343+7715023(Top 53%)9638(Top 60%)9638(Top 766%)
24M24.00 mi1.00 mi15414-1110321+2210321+2215919(Top 56%)9994(Top 62%)9994(Top 794%)
40K24.85 mi0.85 mi15388+2610286+3510286+3515227(Top 54%)9538(Top 59%)9538(Top 758%)
25.2M25.20 mi0.35 mi15366+2210263+2310263+2314657(Top 52%)9250(Top 57%)9250(Top 735%)
Finish26.22 mi1.02 mi15385-1910246+1710246+1716331(Top 57%)10080(Top 63%)10080(Top 801%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

16220

Males

10906

M60-64

10906

5K→10K

3.1 - 6.2 mi

Top 59%
×5story building
+79ft-138ft

Overall

16804

Males

11162

M60-64

11162

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

16220

Males

10906

M60-64

10906

15K→20K

9.3 - 12.4 mi

Top 53%
×5story building
+106ft-86ft

Overall

15073

Males

10350

M60-64

10350

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

14772

Males

10247

M60-64

10247

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

15027

Males

10237

M60-64

10237

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

15213

Males

10149

M60-64

10149

30K→20M

18.6 - 20.0 mi

Top 55%
×5story building
+64ft-50ft

Overall

15751

Males

10257

M60-64

10257

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

14783

Males

9697

M60-64

9697

21M→35K

21.0 - 21.8 mi

Top 55%
×7story building
+17ft-86ft

Overall

15642

Males

10010

M60-64

10010

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

15023

Males

9638

M60-64

9638

23M→24M

23.0 - 24.0 mi

Top 56%
×6story building
+12ft-82ft

Overall

15919

Males

9994

M60-64

9994

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15227

Males

9538

M60-64

9538

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14657

Males

9250

M60-64

9250

25.2M→Finish

25.2 - 26.2 mi

Top 57%
×2story building
+22ft-21ft

Overall

16331

Males

10080

M60-64

10080

Passing Analysis

Category:
Athletes Passed
2108
Passed By
1686
Net Change
+422
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15807
5K → 10K143670-527#15807#16334
10K → 15K229181+48#16334#16286
15K → 20K40548+357#16286#15929
20K → Half6514+51#15929#15878
Half → 25K24984+165#15878#15713
25K → 30K289183+106#15713#15607
30K → 20M13678+58#15607#15549
20M → 21M15274+78#15549#15471
21M → 35K5662-6#15471#15477
35K → 23M14672+74#15477#15403
23M → 24M6677-11#15403#15414
24M → 40K8559+26#15414#15388
40K → 25.2M4018+22#15388#15366
25.2M → Finish4766-19#15366#15385
TOTALS21081686+422
📊

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