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BOSTON MARATHON 2026

Collin Olen-Thomas

Bib: 4004•M

IL

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0:00
/ mi
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Overall
#0 / 29021
Top 32%
Gender (Male)
#0 / 16340
Top 45%
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
19:06
3.11 mi
Rank: #1838
Start → 5K
19:06 | 6:09/mi
10K
37:46
6.21 mi
Rank: #1587 (+251)
5K → 10K
18:40 | 6:01/mi
15K
56:39
9.32 mi
Rank: #1626 (-39)
10K → 15K
18:53 | 6:05/mi
20K
1:16:39
12.43 mi
Rank: #2000 (-374)
15K → 20K
20:00 | 6:27/mi
HALF
1:21:12
13.11 mi
Rank: #2144 (-144)
20K → HALF
4:33 | 6:41/mi
25K
1:39:06
15.53 mi
Rank: #3142 (-998)
HALF → 25K
17:54 | 7:23/mi
30K
2:02:16
18.64 mi
Rank: #4046 (-904)
25K → 30K
23:10 | 7:28/mi
20M
2:12:54
20.00 mi
Rank: #4498 (-452)
30K → 20M
10:38 | 7:50/mi
21M
2:21:47
21.00 mi
Rank: #5128 (-630)
20M → 21M
8:53 | 8:53/mi
35K
2:28:44
21.75 mi
Rank: #5925 (-797)
21M → 35K
6:57 | 9:18/mi
23M
2:41:29
23.00 mi
Rank: #7171 (-1246)
35K → 23M
12:45 | 10:12/mi
24M
2:50:38
24.00 mi
Rank: #7772 (-601)
23M → 24M
9:09 | 9:09/mi
40K
2:59:16
24.85 mi
Rank: #8453 (-681)
24M → 40K
8:38 | 10:06/mi
25.2M
3:02:38
25.20 mi
Rank: #8614 (-161)
40K → 25.2M
3:22 | 9:46/mi
FINISH
3:11:50
26.22 mi
Rank: #9144 (-530)
25.2M → FINISH
9:12 | 9:02/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:21:12
Pace6:12 /mi
2nd Half
Distance13.11 mi
Time1:50:38
Pace8:27 /mi
📊Positive Split: 36.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:3519:066:0919:06
6:09
-
10K
6.21 mi10:39:1537:466:0518:40
6:01
-0:08
15K
9.32 mi10:58:0856:396:0518:53
6:05
+0:04
20K
12.43 mi11:18:081:16:396:1120:00
6:27
+0:22
HALF
13.11 mi11:22:411:21:126:124:33
6:41
+0:14
25K
15.53 mi11:40:351:39:066:2317:54
7:23
+0:42
30K
18.64 mi12:03:452:02:166:3423:10
7:28
+0:05
20M
20.00 mi12:14:232:12:546:3910:38
7:50
+0:22
21M
21.00 mi12:23:162:21:476:468:53
8:53
+1:03
35K
21.75 mi12:30:132:28:446:516:57
9:18
+0:25
23M
23.00 mi12:42:582:41:297:0212:45
10:12
+0:54
24M
24.00 mi12:52:072:50:387:079:09
9:09
-1:03
40K
24.85 mi13:00:452:59:167:138:38
10:06
+0:57
25.2M
25.20 mi13:04:073:02:387:153:22
9:46
-0:20
FINISH
26.22 mi13:13:193:11:507:209:12
9:02
-0:44

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

6:01 /mi

Average Pace

7:19 /mi

Slowest Pace

10:12 /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

1:21:12

42% of race

Time at Steady Pace

51:42

27% of race

Time at Slower Pace

58:56

31% of race

Average Pace: 7:19 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:20:3519:066:0919:06
6:09
#1838
10K
6.21 mi10:39:1537:466:0518:40
6:01
#1587
15K
9.32 mi10:58:0856:396:0518:53
6:05
#1626
20K
12.43 mi11:18:081:16:396:1120:00
6:27
#2000
HALF
13.11 mi11:22:411:21:126:124:33
6:41
#2144
25K
15.53 mi11:40:351:39:066:2317:54
7:23
#3142
30K
18.64 mi12:03:452:02:166:3423:10
7:28
#4046
20M
20.00 mi12:14:232:12:546:3910:38
7:50
#4498
21M
21.00 mi12:23:162:21:476:468:53
8:53
#5128
35K
21.75 mi12:30:132:28:446:516:57
9:18
#5925
23M
23.00 mi12:42:582:41:297:0212:45
10:12
#7171
24M
24.00 mi12:52:072:50:387:079:09
9:09
#7772
40K
24.85 mi13:00:452:59:167:138:38
10:06
#8453
25.2M
25.20 mi13:04:073:02:387:153:22
9:46
#8614
FINISH
26.22 mi13:13:193:11:507:209:12
9:02
#9144
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 mi1838177117711724(Top 6%)1660(Top 10%)1660(Top 29%)
10K6.21 mi3.10 mi1587+2511527+2441527+2441381(Top 5%)1329(Top 8%)1329(Top 23%)
15K9.32 mi3.11 mi1626-391565-381565-381724(Top 6%)1660(Top 10%)1660(Top 29%)
20K12.43 mi3.11 mi2000-3741928-3631928-3633370(Top 12%)3230(Top 20%)3230(Top 56%)
HALF13.11 mi0.68 mi2144-1442068-1402068-1405995(Top 21%)5423(Top 33%)5423(Top 95%)
25K15.53 mi2.42 mi3142-9983012-9443012-94410400(Top 36%)8022(Top 49%)8022(Top 140%)
30K18.64 mi3.11 mi4046-9043821-8093821-8099305(Top 32%)7339(Top 45%)7339(Top 128%)
20M20.00 mi1.36 mi4498-4524217-3964217-39611521(Top 40%)8317(Top 51%)8317(Top 145%)
21M21.00 mi1.00 mi5128-6304730-5134730-51315429(Top 53%)9991(Top 61%)9991(Top 175%)
35K21.75 mi0.75 mi5925-7975326-5965326-59621081(Top 73%)12516(Top 77%)12516(Top 219%)
23M23.00 mi1.25 mi7171-12466220-8946220-89422617(Top 78%)13212(Top 81%)13212(Top 231%)
24M24.00 mi1.00 mi7772-6016577-3576577-35720054(Top 69%)11897(Top 73%)11897(Top 208%)
40K24.85 mi0.85 mi8453-6816933-3566933-35622182(Top 76%)12898(Top 79%)12898(Top 225%)
25.2M25.20 mi0.35 mi8614-1617018-857018-8518386(Top 63%)11046(Top 68%)11046(Top 193%)
FINISH26.22 mi1.02 mi9144-5307295-2777295-27720601(Top 71%)12147(Top 74%)12147(Top 212%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21
+97ft-345ft

Overall

1724

Males

1660

M18-39

1660

5K→10K

3.1 - 6.2 mi

Top 5%
×5
+79ft-138ft

Overall

1381

Males

1329

M18-39

1329

10K→15K

6.2 - 9.3 mi

Top 6%
×3
+67ft-78ft

Overall

1724

Males

1660

M18-39

1660

15K→20K

9.3 - 12.4 mi

Top 12%
×5
+106ft-86ft

Overall

3370

Males

3230

M18-39

3230

20K→HALF

12.4 - 13.1 mi

Top 21%
×2
+19ft-37ft

Overall

5995

Males

5423

M18-39

5423

HALF→25K

13.1 - 15.5 mi

Top 36%
×4
+66ft-88ft

Overall

10400

Males

8022

M18-39

8022

25K→30K

15.5 - 18.6 mi

Top 32%
×9
+181ft-148ft

Overall

9305

Males

7339

M18-39

7339

30K→20M

18.6 - 20.0 mi

Top 40%
×5
+64ft-50ft

Overall

11521

Males

8317

M18-39

8317

20M→21M

20.0 - 21.0 mi

Top 53%
×8
+106ft-24ft

Overall

15429

Males

9991

M18-39

9991

21M→35K

21.0 - 21.8 mi

Top 73%
×7
+17ft-86ft

Overall

21081

Males

12516

M18-39

12516

35K→23M

21.8 - 23.0 mi

Top 78%
×5
+23ft-63ft

Overall

22617

Males

13212

M18-39

13212

23M→24M

23.0 - 24.0 mi

Top 69%
×6
+12ft-82ft

Overall

20054

Males

11897

M18-39

11897

24M→40K

24.0 - 24.9 mi

Top 76%
×1
+6ft-20ft

Overall

22182

Males

12898

M18-39

12898

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1
+13ft-16ft

Overall

18386

Males

11046

M18-39

11046

25.2M→FINISH

25.2 - 26.2 mi

Top 71%
×2
+22ft-21ft

Overall

20601

Males

12147

M18-39

12147

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
377*
Passed By
2400
Net Change
-7306
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1838
5K → 10K261*10+251#1838#1587
10K → 15K3978-39#1587#1626
15K → 20K4200-374#1626#2000
20K → HALF0144-144#2000#2144
HALF → 25K2200-998#2144#3142
25K → 30K9200-904#3142#4046
30K → 20M15200-452#4046#4498
20M → 21M5200-630#4498#5128
21M → 35K4200-797#5128#5925
35K → 23M6200-1246#5925#7171
23M → 24M6200-601#7171#7772
24M → 40K9200-681#7772#8453
40K → 25.2M7168-161#8453#8614
25.2M → FINISH10200-530#8614#9144
TOTALS377*2400-7306

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing