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BOSTON MARATHON 2026

Spencer Preston

Bib: 30590β€’M

FL

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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Age Group (M18-39)
#0 / 5723
Race Day Weather
51Β°/41Β°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
29:18
3.11 mi
Rank: #24253
Start β†’ 5K
29:18 | 9:26/mi
10K
57:43
6.21 mi
Rank: #23858 (+395)
5K β†’ 10K
28:25 | 9:09/mi
15K
1:26:25
9.32 mi
Rank: #23811 (+47)
10K β†’ 15K
28:42 | 9:15/mi
20K
1:54:20
12.43 mi
Rank: #23356 (+455)
15K β†’ 20K
27:55 | 9:00/mi
HALF
2:00:20
13.11 mi
Rank: #23291 (+65)
20K β†’ HALF
6:00 | 8:49/mi
25K
2:25:04
15.53 mi
Rank: #23584 (-293)
HALF β†’ 25K
24:44 | 10:12/mi
30K
3:00:50
18.64 mi
Rank: #24213 (-629)
25K β†’ 30K
35:46 | 11:31/mi
20M
3:17:57
20.00 mi
Rank: #24562 (-349)
30K β†’ 20M
17:07 | 12:37/mi
21M
3:31:09
21.00 mi
Rank: #24721 (-159)
20M β†’ 21M
13:12 | 13:12/mi
35K
3:40:17
21.75 mi
Rank: #24839 (-118)
21M β†’ 35K
9:08 | 12:13/mi
23M
3:56:31
23.00 mi
Rank: #25085 (-246)
35K β†’ 23M
16:14 | 12:59/mi
24M
4:09:36
24.00 mi
Rank: #25293 (-208)
23M β†’ 24M
13:05 | 13:05/mi
40K
4:20:36
24.85 mi
Rank: #25375 (-82)
24M β†’ 40K
11:00 | 12:52/mi
25.2M
4:24:56
25.20 mi
Rank: #25378 (-3)
40K β†’ 25.2M
4:20 | 12:34/mi
FINISH
4:36:49
26.22 mi
Rank: #25492 (-114)
25.2M β†’ FINISH
11:53 | 11:40/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:00:20
Pace9:11 /mi
2nd Half
Distance13.11 mi
Time2:36:29
Pace11:57 /mi
πŸ“ŠPositive Split: 30.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:59:4029:189:2629:18
9:26
-
10K
6.21 mi12:28:0557:439:1828:25
9:09
-0:17
15K
9.32 mi12:56:471:26:259:1728:42
9:15
+0:06
20K
12.43 mi13:24:421:54:209:1327:55
9:00
-0:15
HALF
13.11 mi13:30:422:00:209:116:00
8:49
-0:11
25K
15.53 mi13:55:262:25:049:2124:44
10:12
+1:23
30K
18.64 mi14:31:123:00:509:4335:46
11:31
+1:19
20M
20.00 mi14:48:193:17:579:5417:07
12:37
+1:06
21M
21.00 mi15:01:313:31:0910:0413:12
13:12
+0:35
35K
21.75 mi15:10:393:40:1710:089:08
12:13
-0:59
23M
23.00 mi15:26:533:56:3110:1816:14
12:59
+0:46
24M
24.00 mi15:39:584:09:3610:2513:05
13:05
+0:06
40K
24.85 mi15:50:584:20:3610:3011:00
12:52
-0:13
25.2M
25.20 mi15:55:184:24:5610:314:20
12:34
-0:18
FINISH
26.22 mi16:07:114:36:4910:3411:53
11:40
-0:54

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace 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

8:49 /mi

Average Pace

10:34 /mi

Slowest Pace

13:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

2:25:04

52% of race

Time at Steady Pace

56:47

21% of race

Time at Slower Pace

1:14:58

27% of race

Average Pace: 10:33 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:59:4029:189:2629:18
9:26
#24253
10K
6.21 mi12:28:0557:439:1828:25
9:09
#23858
15K
9.32 mi12:56:471:26:259:1728:42
9:15
#23811
20K
12.43 mi13:24:421:54:209:1327:55
9:00
#23356
HALF
13.11 mi13:30:422:00:209:116:00
8:49
#23291
25K
15.53 mi13:55:262:25:049:2124:44
10:12
#23584
30K
18.64 mi14:31:123:00:509:4335:46
11:31
#24213
20M
20.00 mi14:48:193:17:579:5417:07
12:37
#24562
21M
21.00 mi15:01:313:31:0910:0413:12
13:12
#24721
35K
21.75 mi15:10:393:40:1710:089:08
12:13
#24839
23M
23.00 mi15:26:533:56:3110:1816:14
12:59
#25085
24M
24.00 mi15:39:584:09:3610:2513:05
13:05
#25293
40K
24.85 mi15:50:584:20:3610:3011:00
12:52
#25375
25.2M
25.20 mi15:55:184:24:5610:314:20
12:34
#25378
FINISH
26.22 mi16:07:114:36:4910:3411:53
11:40
#25492
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi24253143661436623621(Top 81%)14065(Top 86%)14065(Top 246%)
10K6.21 mi3.10 mi23858+39514177+18914177+18923423(Top 81%)13970(Top 85%)13970(Top 244%)
15K9.32 mi3.11 mi23811+4714155+2214155+2223621(Top 81%)14065(Top 86%)14065(Top 246%)
20K12.43 mi3.11 mi23356+45513925+23013925+23021855(Top 75%)13185(Top 81%)13185(Top 230%)
HALF13.11 mi0.68 mi23291+6513880+4513880+4521836(Top 75%)13208(Top 81%)13208(Top 231%)
25K15.53 mi2.42 mi23584-29314023-14314023-14324765(Top 85%)14561(Top 89%)14561(Top 254%)
30K18.64 mi3.11 mi24213-62914306-28314306-28326154(Top 90%)15076(Top 92%)15076(Top 263%)
20M20.00 mi1.36 mi24562-34914462-15614462-15627050(Top 93%)15419(Top 94%)15419(Top 269%)
21M21.00 mi1.00 mi24721-15914515-5314515-5326576(Top 92%)15155(Top 93%)15155(Top 265%)
35K21.75 mi0.75 mi24839-11814569-5414569-5426958(Top 93%)15319(Top 94%)15319(Top 268%)
23M23.00 mi1.25 mi25085-24614658-8914658-8927286(Top 94%)15464(Top 95%)15464(Top 270%)
24M24.00 mi1.00 mi25293-20814741-8314741-8327710(Top 95%)15642(Top 96%)15642(Top 273%)
40K24.85 mi0.85 mi25375-8214764-2314764-2326917(Top 93%)15222(Top 93%)15222(Top 266%)
25.2M25.20 mi0.35 mi25378-314761+314761+325437(Top 88%)14505(Top 89%)14505(Top 253%)
FINISH26.22 mi1.02 mi25492-11414798-3714798-3727084(Top 93%)15304(Top 94%)15304(Top 267%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
Γ—21
+97ft-345ft

Overall

23621

Males

14065

M18-39

14065

5K→10K

3.1 - 6.2 mi

Top 81%
Γ—5
+79ft-138ft

Overall

23423

Males

13970

M18-39

13970

10K→15K

6.2 - 9.3 mi

Top 81%
Γ—3
+67ft-78ft

Overall

23621

Males

14065

M18-39

14065

15K→20K

9.3 - 12.4 mi

Top 75%
Γ—5
+106ft-86ft

Overall

21855

Males

13185

M18-39

13185

20K→HALF

12.4 - 13.1 mi

Top 75%
Γ—2
+19ft-37ft

Overall

21836

Males

13208

M18-39

13208

HALF→25K

13.1 - 15.5 mi

Top 85%
Γ—4
+66ft-88ft

Overall

24765

Males

14561

M18-39

14561

25K→30K

15.5 - 18.6 mi

Top 90%
Γ—9
+181ft-148ft

Overall

26154

Males

15076

M18-39

15076

30K→20M

18.6 - 20.0 mi

Top 93%
Γ—5
+64ft-50ft

Overall

27050

Males

15419

M18-39

15419

20M→21M

20.0 - 21.0 mi

Top 92%
Γ—8
+106ft-24ft

Overall

26576

Males

15155

M18-39

15155

21M→35K

21.0 - 21.8 mi

Top 93%
Γ—7
+17ft-86ft

Overall

26958

Males

15319

M18-39

15319

35K→23M

21.8 - 23.0 mi

Top 94%
Γ—5
+23ft-63ft

Overall

27286

Males

15464

M18-39

15464

23M→24M

23.0 - 24.0 mi

Top 95%
Γ—6
+12ft-82ft

Overall

27710

Males

15642

M18-39

15642

24M→40K

24.0 - 24.9 mi

Top 93%
Γ—1
+6ft-20ft

Overall

26917

Males

15222

M18-39

15222

40K→25.2M

24.9 - 25.2 mi

Top 88%
Γ—1
+13ft-16ft

Overall

25437

Males

14505

M18-39

14505

25.2M→FINISH

25.2 - 26.2 mi

Top 93%
Γ—2
+22ft-21ft

Overall

27084

Males

15304

M18-39

15304

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1370
Passed By
2609
Net Change
-1239
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#24253
5K β†’ 10K47681+395#24253#23858
10K β†’ 15K177130+47#23858#23811
15K β†’ 20K46611+455#23811#23356
20K β†’ HALF727+65#23356#23291
HALF β†’ 25K51344-293#23291#23584
25K β†’ 30K34663-629#23584#24213
30K β†’ 20M8357-349#24213#24562
20M β†’ 21M13172-159#24562#24721
21M β†’ 35K9127-118#24721#24839
35K β†’ 23M12258-246#24839#25085
23M β†’ 24M8216-208#25085#25293
24M β†’ 40K1496-82#25293#25375
40K β†’ 25.2M1821-3#25375#25378
25.2M β†’ FINISH12126-114#25378#25492
TOTALS13702609-1239
πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing