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BOSTON MARATHON 2025

Tony Spalding

Bib: 688•M

IN

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 8%
Gender (Male)
#0 / 16105
Top 14%
Division (M18-39)
#0 / 5642
Top 33%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:53
Rank: #525
Start → 5K
5:45/mi
17:53 split
10K· 6.21 mi
35:30
Rank: #460 (+65)
5K → 10K
5:40/mi
17:37 split
15K· 9.32 mi
53:08
Rank: #406 (+54)
10K → 15K
5:41/mi
17:38 split
20K· 12.43 mi
1:10:48
Rank: #376 (+30)
15K → 20K
5:41/mi
17:40 split
Half· 13.11 mi
1:14:42
Rank: #378 (-2)
20K → Half
5:43/mi
3:54 split
25K· 15.53 mi
1:28:50
Rank: #386 (-8)
Half → 25K
5:50/mi
14:08 split
30K· 18.64 mi
1:48:39
Rank: #478 (-92)
25K → 30K
6:23/mi
19:49 split
20M
1:58:06
Rank: #562 (-84)
30K → 20M
6:57/mi
9:27 split
21M
2:05:24
Rank: #634 (-72)
20M → 21M
7:18/mi
7:18 split
35K· 21.75 mi
2:12:08
Rank: #851 (-217)
21M → 35K
9:00/mi
6:44 split
23M
2:24:09
Rank: #1413 (-562)
35K → 23M
9:36/mi
12:01 split
24M
2:32:01
Rank: #1665 (-252)
23M → 24M
7:52/mi
7:52 split
40K· 24.85 mi
2:39:39
Rank: #2020 (-355)
24M → 40K
8:56/mi
7:38 split
25.2M
2:43:13
Rank: #2225 (-205)
40K → 25.2M
10:21/mi
3:34 split
Finish· 26.22 mi
2:50:37
Rank: #2380 (-155)
25.2M → Finish
7:16/mi
7:24 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:14:42
Pace5:42 /mi
2nd Half
Distance13.11 mi
Time1:35:55
Pace7:19 /mi
📊Positive Split: 28.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:1517:535:4517:53
5:45
-
10K
6.21 mi10:35:5235:305:4317:37
5:40
-0:05
15K
9.32 mi10:53:3053:085:4217:38
5:41
+0:01
20K
12.43 mi11:11:101:10:485:4217:40
5:41
0:00
Half
13.11 mi11:15:041:14:425:423:54
5:43
+0:02
25K
15.53 mi11:29:121:28:505:4314:08
5:50
+0:07
30K
18.64 mi11:49:011:48:395:5019:49
6:23
+0:33
20M
20.00 mi11:58:281:58:065:549:27
6:57
+0:34
21M
21.00 mi12:05:462:05:245:587:18
7:18
+0:21
35K
21.75 mi12:12:302:12:086:056:44
9:00
+1:42
23M
23.00 mi12:24:312:24:096:1612:01
9:36
+0:36
24M
24.00 mi12:32:232:32:016:207:52
7:52
-1:44
40K
24.85 mi12:40:012:39:396:257:38
8:56
+1:04
25.2M
25.20 mi12:43:352:43:136:293:34
10:21
+1:25
Finish
26.22 mi12:50:592:50:376:317:24
7:16
-3:05

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

5:40 /mi

Average Pace

6:31 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:28:50

52% of race

Time at Steady Pace

43:58

26% of race

Time at Slower Pace

37:49

22% of race

Average Pace: 6:30 /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 mi10:18:1517:535:4517:53
5:45
#525
10K
6.21 mi10:35:5235:305:4317:37
5:40
#460
15K
9.32 mi10:53:3053:085:4217:38
5:41
#406
20K
12.43 mi11:11:101:10:485:4217:40
5:41
#376
Half
13.11 mi11:15:041:14:425:423:54
5:43
#378
25K
15.53 mi11:29:121:28:505:4314:08
5:50
#386
30K
18.64 mi11:49:011:48:395:5019:49
6:23
#478
20M
20.00 mi11:58:281:58:065:549:27
6:57
#562
21M
21.00 mi12:05:462:05:245:587:18
7:18
#634
35K
21.75 mi12:12:302:12:086:056:44
9:00
#851
23M
23.00 mi12:24:312:24:096:1612:01
9:36
#1413
24M
24.00 mi12:32:232:32:016:207:52
7:52
#1665
40K
24.85 mi12:40:012:39:396:257:38
8:56
#2020
25.2M
25.20 mi12:43:352:43:136:293:34
10:21
#2225
Finish
26.22 mi12:50:592:50:376:317:24
7:16
#2380
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi525487487349(Top 1%)321(Top 2%)321(Top 6%)
10K6.21 mi3.10 mi460+65423+64423+64398(Top 1%)367(Top 2%)367(Top 7%)
15K9.32 mi3.11 mi406+54375+48375+48349(Top 1%)321(Top 2%)321(Top 6%)
20K12.43 mi3.11 mi376+30346+29346+29300(Top 1%)273(Top 2%)273(Top 5%)
Half13.11 mi0.68 mi378-2348-2348-2458(Top 2%)430(Top 3%)430(Top 8%)
25K15.53 mi2.42 mi386-8354-6354-6461(Top 2%)428(Top 3%)428(Top 8%)
30K18.64 mi3.11 mi478-92442-88442-881473(Top 5%)1394(Top 9%)1394(Top 25%)
20M20.00 mi1.36 mi562-84517-75517-753803(Top 13%)3496(Top 22%)3496(Top 62%)
21M21.00 mi1.00 mi634-72587-70587-703590(Top 13%)3279(Top 20%)3279(Top 58%)
35K21.75 mi0.75 mi851-217798-211798-21118184(Top 64%)11120(Top 69%)11120(Top 197%)
23M23.00 mi1.25 mi1413-5621334-5361334-53619054(Top 67%)11460(Top 71%)11460(Top 203%)
24M24.00 mi1.00 mi1665-2521576-2421576-24210261(Top 36%)7281(Top 45%)7281(Top 129%)
40K24.85 mi0.85 mi2020-3551917-3411917-34115857(Top 56%)9833(Top 61%)9833(Top 174%)
25.2M25.20 mi0.35 mi2225-2052114-1972114-19718360(Top 65%)10968(Top 68%)10968(Top 194%)
Finish26.22 mi1.02 mi2380-1552255-1412255-1417430(Top 26%)5563(Top 35%)5563(Top 99%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21story building
+97ft-345ft

Overall

349

Males

321

M18-39

321

5K→10K

3.1 - 6.2 mi

Top 1%
×5story building
+79ft-138ft

Overall

398

Males

367

M18-39

367

10K→15K

6.2 - 9.3 mi

Top 1%
×3story building
+67ft-78ft

Overall

349

Males

321

M18-39

321

15K→20K

9.3 - 12.4 mi

Top 1%
×5story building
+106ft-86ft

Overall

300

Males

273

M18-39

273

20K→Half

12.4 - 13.1 mi

Top 2%
×2story building
+19ft-37ft

Overall

458

Males

430

M18-39

430

Half→25K

13.1 - 15.5 mi

Top 2%
×4story building
+66ft-88ft

Overall

461

Males

428

M18-39

428

25K→30K

15.5 - 18.6 mi

Top 5%
×9story building
+181ft-148ft

Overall

1473

Males

1394

M18-39

1394

30K→20M

18.6 - 20.0 mi

Top 13%
×5story building
+64ft-50ft

Overall

3803

Males

3496

M18-39

3496

20M→21M

20.0 - 21.0 mi

Top 13%
×8story building
+106ft-24ft

Overall

3590

Males

3279

M18-39

3279

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

18184

Males

11120

M18-39

11120

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

19054

Males

11460

M18-39

11460

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

10261

Males

7281

M18-39

7281

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15857

Males

9833

M18-39

9833

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18360

Males

10968

M18-39

10968

25.2M→Finish

25.2 - 26.2 mi

Top 26%
×2story building
+22ft-21ft

Overall

7430

Males

5563

M18-39

5563

Passing Analysis

Category:
Athletes Passed
196
Passed By
2051
Net Change
-1855
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#525
5K → 10K727+65#525#460
10K → 15K573+54#460#406
15K → 20K344+30#406#376
20K → Half24-2#376#378
Half → 25K1018-8#378#386
25K → 30K294-92#386#478
30K → 20M084-84#478#562
20M → 21M577-72#562#634
21M → 35K3220-217#634#851
35K → 23M0562-562#851#1413
23M → 24M6258-252#1413#1665
24M → 40K1356-355#1665#2020
40K → 25.2M0205-205#2020#2225
25.2M → Finish4159-155#2225#2380
TOTALS1962051-1855
📊

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