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BOSTON MARATHON 2026

Spenser Adams

Bib: 29854•M

MA

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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Age Group (M18-39)
#0 / 5723
Race Day Weather
51°/41°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
25:27
3.11 mi
Rank: #18163
Start → 5K
25:27 | 8:12/mi
10K
50:19
6.21 mi
Rank: #17747 (+416)
5K → 10K
24:52 | 8:01/mi
15K
1:13:58
9.32 mi
Rank: #16573 (+1174)
10K → 15K
23:39 | 7:37/mi
20K
1:37:49
12.43 mi
Rank: #15749 (+824)
15K → 20K
23:51 | 7:41/mi
HALF
1:43:05
13.11 mi
Rank: #15694 (+55)
20K → HALF
5:16 | 7:44/mi
25K
2:01:55
15.53 mi
Rank: #15318 (+376)
HALF → 25K
18:50 | 7:46/mi
30K
2:27:08
18.64 mi
Rank: #15126 (+192)
25K → 30K
25:13 | 8:07/mi
20M
2:39:12
20.00 mi
Rank: #15422 (-296)
30K → 20M
12:04 | 8:54/mi
21M
2:47:52
21.00 mi
Rank: #15310 (+112)
20M → 21M
8:40 | 8:40/mi
35K
2:53:50
21.75 mi
Rank: #15258 (+52)
21M → 35K
5:58 | 7:59/mi
23M
3:04:09
23.00 mi
Rank: #15181 (+77)
35K → 23M
10:19 | 8:15/mi
24M
3:12:10
24.00 mi
Rank: #15097 (+84)
23M → 24M
8:01 | 8:01/mi
40K
3:19:03
24.85 mi
Rank: #14992 (+105)
24M → 40K
6:53 | 8:04/mi
25.2M
3:22:06
25.20 mi
Rank: #14964 (+28)
40K → 25.2M
3:03 | 8:51/mi
FINISH
3:29:55
26.22 mi
Rank: #14908 (+56)
25.2M → FINISH
7:49 | 7:41/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:43:05
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:46:50
Pace8:09 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:2625:278:1225:27
8:12
-
10K
6.21 mi12:14:1850:198:0624:52
8:01
-0:11
15K
9.32 mi12:37:571:13:587:5723:39
7:37
-0:24
20K
12.43 mi13:01:481:37:497:5323:51
7:41
+0:04
HALF
13.11 mi13:07:041:43:057:525:16
7:44
+0:03
25K
15.53 mi13:25:542:01:557:5118:50
7:46
+0:02
30K
18.64 mi13:51:072:27:087:5425:13
8:07
+0:21
20M
20.00 mi14:03:112:39:127:5812:04
8:54
+0:47
21M
21.00 mi14:11:512:47:528:008:40
8:40
-0:14
35K
21.75 mi14:17:492:53:508:005:58
7:59
-0:41
23M
23.00 mi14:28:083:04:098:0110:19
8:15
+0:16
24M
24.00 mi14:36:093:12:108:018:01
8:01
-0:14
40K
24.85 mi14:43:023:19:038:016:53
8:04
+0:03
25.2M
25.20 mi14:46:053:22:068:023:03
8:51
+0:47
FINISH
26.22 mi14:53:543:29:558:017:49
7:41
-1:10

Checkpoint Splits Visualizations

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

📈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

7:37 /mi

Average Pace

8:01 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

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

3:06:08

89% of race

Time at Steady Pace

23:47

11% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:00 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:49:2625:278:1225:27
8:12
#18163
10K
6.21 mi12:14:1850:198:0624:52
8:01
#17747
15K
9.32 mi12:37:571:13:587:5723:39
7:37
#16573
20K
12.43 mi13:01:481:37:497:5323:51
7:41
#15749
HALF
13.11 mi13:07:041:43:057:525:16
7:44
#15694
25K
15.53 mi13:25:542:01:557:5118:50
7:46
#15318
30K
18.64 mi13:51:072:27:087:5425:13
8:07
#15126
20M
20.00 mi14:03:112:39:127:5812:04
8:54
#15422
21M
21.00 mi14:11:512:47:528:008:40
8:40
#15310
35K
21.75 mi14:17:492:53:508:005:58
7:59
#15258
23M
23.00 mi14:28:083:04:098:0110:19
8:15
#15181
24M
24.00 mi14:36:093:12:108:018:01
8:01
#15097
40K
24.85 mi14:43:023:19:038:016:53
8:04
#14992
25.2M
25.20 mi14:46:053:22:068:023:03
8:51
#14964
FINISH
26.22 mi14:53:543:29:558:017:49
7:41
#14908
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 mi18163114851148513766(Top 47%)9696(Top 59%)9696(Top 169%)
10K6.21 mi3.10 mi17747+41611329+15611329+15617247(Top 59%)11113(Top 68%)11113(Top 194%)
15K9.32 mi3.11 mi16573+117410828+50110828+50113766(Top 47%)9696(Top 59%)9696(Top 169%)
20K12.43 mi3.11 mi15749+82410479+34910479+34913509(Top 47%)9511(Top 58%)9511(Top 166%)
HALF13.11 mi0.68 mi15694+5510452+2710452+2714895(Top 51%)10178(Top 62%)10178(Top 178%)
25K15.53 mi2.42 mi15318+37610299+15310299+15313547(Top 47%)9458(Top 58%)9458(Top 165%)
30K18.64 mi3.11 mi15126+19210193+10610193+10614308(Top 49%)9679(Top 59%)9679(Top 169%)
20M20.00 mi1.36 mi15422-29610285-9210285-9218359(Top 63%)11324(Top 69%)11324(Top 198%)
21M21.00 mi1.00 mi15310+11210204+8110204+8114161(Top 49%)9442(Top 58%)9442(Top 165%)
35K21.75 mi0.75 mi15258+5210176+2810176+2814289(Top 49%)9455(Top 58%)9455(Top 165%)
23M23.00 mi1.25 mi15181+7710120+5610120+5614064(Top 48%)9279(Top 57%)9279(Top 162%)
24M24.00 mi1.00 mi15097+8410070+5010070+5013868(Top 48%)9103(Top 56%)9103(Top 159%)
40K24.85 mi0.85 mi14992+10510007+6310007+6312833(Top 44%)8555(Top 52%)8555(Top 149%)
25.2M25.20 mi0.35 mi14964+289985+229985+2213724(Top 47%)8936(Top 55%)8936(Top 156%)
FINISH26.22 mi1.02 mi14908+569947+389947+3812734(Top 44%)8447(Top 52%)8447(Top 148%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21
+97ft-345ft

Overall

13766

Males

9696

M18-39

9696

5K→10K

3.1 - 6.2 mi

Top 59%
×5
+79ft-138ft

Overall

17247

Males

11113

M18-39

11113

10K→15K

6.2 - 9.3 mi

Top 47%
×3
+67ft-78ft

Overall

13766

Males

9696

M18-39

9696

15K→20K

9.3 - 12.4 mi

Top 47%
×5
+106ft-86ft

Overall

13509

Males

9511

M18-39

9511

20K→HALF

12.4 - 13.1 mi

Top 51%
×2
+19ft-37ft

Overall

14895

Males

10178

M18-39

10178

HALF→25K

13.1 - 15.5 mi

Top 47%
×4
+66ft-88ft

Overall

13547

Males

9458

M18-39

9458

25K→30K

15.5 - 18.6 mi

Top 49%
×9
+181ft-148ft

Overall

14308

Males

9679

M18-39

9679

30K→20M

18.6 - 20.0 mi

Top 63%
×5
+64ft-50ft

Overall

18359

Males

11324

M18-39

11324

20M→21M

20.0 - 21.0 mi

Top 49%
×8
+106ft-24ft

Overall

14161

Males

9442

M18-39

9442

21M→35K

21.0 - 21.8 mi

Top 49%
×7
+17ft-86ft

Overall

14289

Males

9455

M18-39

9455

35K→23M

21.8 - 23.0 mi

Top 48%
×5
+23ft-63ft

Overall

14064

Males

9279

M18-39

9279

23M→24M

23.0 - 24.0 mi

Top 48%
×6
+12ft-82ft

Overall

13868

Males

9103

M18-39

9103

24M→40K

24.0 - 24.9 mi

Top 44%
×1
+6ft-20ft

Overall

12833

Males

8555

M18-39

8555

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1
+13ft-16ft

Overall

13724

Males

8936

M18-39

8936

25.2M→FINISH

25.2 - 26.2 mi

Top 44%
×2
+22ft-21ft

Overall

12734

Males

8447

M18-39

8447

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
4091
Passed By
836
Net Change
+3255
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18163
5K → 10K549133+416#18163#17747
10K → 15K11773+1174#17747#16573
15K → 20K8328+824#16573#15749
20K → HALF6914+55#15749#15694
HALF → 25K3859+376#15694#15318
25K → 30K296104+192#15318#15126
30K → 20M44340-296#15126#15422
20M → 21M15745+112#15422#15310
21M → 35K8735+52#15310#15258
35K → 23M12346+77#15258#15181
23M → 24M11632+84#15181#15097
24M → 40K12520+105#15097#14992
40K → 25.2M4618+28#14992#14964
25.2M → FINISH8529+56#14964#14908
TOTALS4091836+3255
📊

Passing Analysis Visualizations

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

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race 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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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing