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BOSTON MARATHON 2025

Donald Salois Jr.

Bib: 31767•M

MA

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Division (M18-39)
#0 / 5642
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
9:01/mi
28:02
↑ 97↓ 3451.5%
10K· 6.21 mi
8:53/mi
55:37
↑ 79↓ 1380.4%
15K· 9.32 mi
8:45/mi
1:22:48
↑ 67↓ 78
20K· 12.43 mi
8:45/mi
1:49:58
↑ 106↓ 860.1%
Half· 13.11 mi
8:36/mi
1:55:50
↑ 19↓ 370.5%
25K· 15.53 mi
9:03/mi
2:17:47
↑ 66↓ 880.2%
30K· 18.64 mi
8:51/mi
2:45:17
↑ 181↓ 1480.2%
20M
8:59/mi
2:57:29
↑ 64↓ 500.2%
21M
9:00/mi
3:06:29
↑ 106↓ 241.6%
35K· 21.75 mi
8:37/mi
3:12:56
↑ 17↓ 861.7%
23M
8:48/mi
3:23:57
↑ 23↓ 630.6%
24M
8:47/mi
3:32:44
↓ 821.3%
40K· 24.85 mi
8:43/mi
3:40:11
↓ 200.3%
25.2M
9:20/mi
3:43:24
↑ 13↓ 160.2%
Finish· 26.22 mi
8:00/mi
3:51:33
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:55:50
Pace8:50 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:55:43
Pace8:50 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:2828:029:0128:02
9:01
-
10K
6.21 mi12:17:0355:378:5727:35
8:53
-0:08
15K
9.32 mi12:44:141:22:488:5327:11
8:45
-0:08
20K
12.43 mi13:11:241:49:588:5127:10
8:45
0:00
Half
13.11 mi13:17:161:55:508:505:52
8:36
-0:09
25K
15.53 mi13:39:132:17:478:5221:57
9:03
+0:27
30K
18.64 mi14:06:432:45:178:5227:30
8:51
-0:12
20M
20.00 mi14:18:552:57:298:5212:12
8:59
+0:08
21M
21.00 mi14:27:553:06:298:539:00
9:00
+0:01
35K
21.75 mi14:34:223:12:568:526:27
8:37
-0:23
23M
23.00 mi14:45:233:23:578:5211:01
8:48
+0:11
24M
24.00 mi14:54:103:32:448:528:47
8:47
-0:01
40K
24.85 mi15:01:373:40:118:527:27
8:43
-0:04
25.2M
25.20 mi15:04:503:43:248:523:13
9:20
+0:37
Finish
26.22 mi15:12:593:51:338:508:09
8:00
-1:20

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

8:00 /mi

Average Pace

8:50 /mi

Slowest Pace

9:20 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:04

44% of race

Time at Steady Pace

2:09:29

56% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:50 /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 mi11:49:2828:029:0128:02
9:01
#22504
10K
6.21 mi12:17:0355:378:5727:35
8:53
#22201
15K
9.32 mi12:44:141:22:488:5327:11
8:45
#21734
20K
12.43 mi13:11:241:49:588:5127:10
8:45
#21162
Half
13.11 mi13:17:161:55:508:505:52
8:36
#21113
25K
15.53 mi13:39:132:17:478:5221:57
9:03
#20944
30K
18.64 mi14:06:432:45:178:5227:30
8:51
#20215
20M
20.00 mi14:18:552:57:298:5212:12
8:59
#19952
21M
21.00 mi14:27:553:06:298:539:00
9:00
#19599
35K
21.75 mi14:34:223:12:568:526:27
8:37
#19474
23M
23.00 mi14:45:233:23:578:5211:01
8:48
#19228
24M
24.00 mi14:54:103:32:448:528:47
8:47
#19105
40K
24.85 mi15:01:373:40:118:527:27
8:43
#18932
25.2M
25.20 mi15:04:503:43:248:523:13
9:20
#18859
Finish
26.22 mi15:12:593:51:338:508:09
8:00
#18651
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi22504135331353320744(Top 73%)12831(Top 80%)12831(Top 227%)
10K6.21 mi3.10 mi22201+30313413+12013413+12021783(Top 77%)13250(Top 82%)13250(Top 235%)
15K9.32 mi3.11 mi21734+46713217+19613217+19620744(Top 73%)12831(Top 80%)12831(Top 227%)
20K12.43 mi3.11 mi21162+57212985+23212985+23219642(Top 69%)12298(Top 76%)12298(Top 218%)
Half13.11 mi0.68 mi21113+4912966+1912966+1919772(Top 70%)12365(Top 77%)12365(Top 219%)
25K15.53 mi2.42 mi20944+16912878+8812878+8820130(Top 71%)12467(Top 77%)12467(Top 221%)
30K18.64 mi3.11 mi20215+72912512+36612512+36616901(Top 60%)10877(Top 68%)10877(Top 193%)
20M20.00 mi1.36 mi19952+26312379+13312379+13316672(Top 59%)10673(Top 66%)10673(Top 189%)
21M21.00 mi1.00 mi19599+35312197+18212197+18213502(Top 48%)9116(Top 57%)9116(Top 162%)
35K21.75 mi0.75 mi19474+12512132+6512132+6516183(Top 57%)10266(Top 64%)10266(Top 182%)
23M23.00 mi1.25 mi19228+24611996+13611996+13615105(Top 53%)9680(Top 60%)9680(Top 172%)
24M24.00 mi1.00 mi19105+12311926+7011926+7016214(Top 57%)10129(Top 63%)10129(Top 180%)
40K24.85 mi0.85 mi18932+17311812+11411812+11414689(Top 52%)9306(Top 58%)9306(Top 165%)
25.2M25.20 mi0.35 mi18859+7311780+3211780+3213601(Top 48%)8771(Top 54%)8771(Top 155%)
Finish26.22 mi1.02 mi18651+20811670+11011670+11012867(Top 45%)8480(Top 53%)8480(Top 150%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21story building
+97ft-345ft

Overall

20744

Males

12831

M18-39

12831

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

21783

Males

13250

M18-39

13250

10K→15K

6.2 - 9.3 mi

Top 73%
×3story building
+67ft-78ft

Overall

20744

Males

12831

M18-39

12831

15K→20K

9.3 - 12.4 mi

Top 69%
×5story building
+106ft-86ft

Overall

19642

Males

12298

M18-39

12298

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

19772

Males

12365

M18-39

12365

Half→25K

13.1 - 15.5 mi

Top 71%
×4story building
+66ft-88ft

Overall

20130

Males

12467

M18-39

12467

25K→30K

15.5 - 18.6 mi

Top 60%
×9story building
+181ft-148ft

Overall

16901

Males

10877

M18-39

10877

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

16672

Males

10673

M18-39

10673

20M→21M

20.0 - 21.0 mi

Top 48%
×8story building
+106ft-24ft

Overall

13502

Males

9116

M18-39

9116

21M→35K

21.0 - 21.8 mi

Top 57%
×7story building
+17ft-86ft

Overall

16183

Males

10266

M18-39

10266

35K→23M

21.8 - 23.0 mi

Top 53%
×5story building
+23ft-63ft

Overall

15105

Males

9680

M18-39

9680

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

16214

Males

10129

M18-39

10129

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14689

Males

9306

M18-39

9306

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1story
+13ft-16ft

Overall

13601

Males

8771

M18-39

8771

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2story building
+22ft-21ft

Overall

12867

Males

8480

M18-39

8480

Passing Analysis

Category:
Athletes Passed
4137
Passed By
284
Net Change
+3853
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22504
5K → 10K433130+303#22504#22201
10K → 15K50437+467#22201#21734
15K → 20K58614+572#21734#21162
20K → Half6415+49#21162#21113
Half → 25K21849+169#21113#20944
25K → 30K7323+729#20944#20215
30K → 20M2696+263#20215#19952
20M → 21M3530+353#19952#19599
21M → 35K1305+125#19599#19474
35K → 23M2504+246#19474#19228
23M → 24M13411+123#19228#19105
24M → 40K1763+173#19105#18932
40K → 25.2M752+73#18932#18859
25.2M → Finish2135+208#18859#18651
TOTALS4137284+3853
📊

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