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BOSTON MARATHON 2026

Thomas Marais

Bib: 4821•M

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 12%
Gender (Male)
#0 / 16340
Top 21%
Age Group (M18-39)
#0 / 5723
Top 46%
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
20:20
3.11 mi
Rank: #4543
Start → 5K
20:20 | 6:33/mi
10K
40:32
6.21 mi
Rank: #4368 (+175)
5K → 10K
20:12 | 6:31/mi
15K
1:00:26
9.32 mi
Rank: #4040 (+328)
10K → 15K
19:54 | 6:25/mi
20K
1:20:25
12.43 mi
Rank: #3844 (+196)
15K → 20K
19:59 | 6:26/mi
HALF
1:24:37
13.11 mi
Rank: #3755 (+89)
20K → HALF
4:12 | 6:10/mi
25K
1:40:17
15.53 mi
Rank: #3631 (+124)
HALF → 25K
15:40 | 6:28/mi
30K
2:00:45
18.64 mi
Rank: #3465 (+166)
25K → 30K
20:28 | 6:36/mi
20M
2:09:49
20.00 mi
Rank: #3433 (+32)
30K → 20M
9:04 | 6:41/mi
21M
2:16:49
21.00 mi
Rank: #3413 (+20)
20M → 21M
7:00 | 7:00/mi
35K
2:21:26
21.75 mi
Rank: #3334 (+79)
21M → 35K
4:37 | 6:11/mi
23M
2:29:52
23.00 mi
Rank: #3320 (+14)
35K → 23M
8:26 | 6:45/mi
24M
2:36:33
24.00 mi
Rank: #3313 (+7)
23M → 24M
6:41 | 6:41/mi
40K
2:42:33
24.85 mi
Rank: #3352 (-39)
24M → 40K
6:00 | 7:02/mi
25.2M
2:45:13
25.20 mi
Rank: #3379 (-27)
40K → 25.2M
2:40 | 7:44/mi
FINISH
2:52:53
26.22 mi
Rank: #3610 (-231)
25.2M → FINISH
7:40 | 7:32/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:24:37
Pace6:28 /mi
2nd Half
Distance13.11 mi
Time1:28:16
Pace6:44 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3520:206:3320:20
6:33
-
10K
6.21 mi10:42:4740:326:3220:12
6:31
-0:02
15K
9.32 mi11:02:411:00:266:3019:54
6:25
-0:06
20K
12.43 mi11:22:401:20:256:2919:59
6:26
+0:01
HALF
13.11 mi11:26:521:24:376:284:12
6:10
-0:16
25K
15.53 mi11:42:321:40:176:2815:40
6:28
+0:18
30K
18.64 mi12:03:002:00:456:2920:28
6:36
+0:08
20M
20.00 mi12:12:042:09:496:309:04
6:41
+0:05
21M
21.00 mi12:19:042:16:496:317:00
7:00
+0:19
35K
21.75 mi12:23:412:21:266:314:37
6:11
-0:49
23M
23.00 mi12:32:072:29:526:318:26
6:45
+0:34
24M
24.00 mi12:38:482:36:336:326:41
6:41
-0:04
40K
24.85 mi12:44:482:42:336:336:00
7:02
+0:21
25.2M
25.20 mi12:47:282:45:136:342:40
7:44
+0:42
FINISH
26.22 mi12:55:082:52:536:367:40
7:32
-0:12

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

6:10 /mi

Average Pace

6:36 /mi

Slowest Pace

7:44 /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

8:49

5% of race

Time at Steady Pace

2:20:44

81% of race

Time at Slower Pace

23:20

13% of race

Average Pace: 6:36 /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 mi10:22:3520:206:3320:20
6:33
#4543
10K
6.21 mi10:42:4740:326:3220:12
6:31
#4368
15K
9.32 mi11:02:411:00:266:3019:54
6:25
#4040
20K
12.43 mi11:22:401:20:256:2919:59
6:26
#3844
HALF
13.11 mi11:26:521:24:376:284:12
6:10
#3755
25K
15.53 mi11:42:321:40:176:2815:40
6:28
#3631
30K
18.64 mi12:03:002:00:456:2920:28
6:36
#3465
20M
20.00 mi12:12:042:09:496:309:04
6:41
#3433
21M
21.00 mi12:19:042:16:496:317:00
7:00
#3413
35K
21.75 mi12:23:412:21:266:314:37
6:11
#3334
23M
23.00 mi12:32:072:29:526:318:26
6:45
#3320
24M
24.00 mi12:38:482:36:336:326:41
6:41
#3313
40K
24.85 mi12:44:482:42:336:336:00
7:02
#3352
25.2M
25.20 mi12:47:282:45:136:342:40
7:44
#3379
FINISH
26.22 mi12:55:082:52:536:367:40
7:32
#3610
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 mi4543427242723543(Top 12%)3387(Top 21%)3387(Top 59%)
10K6.21 mi3.10 mi4368+1754129+1434129+1434217(Top 15%)3992(Top 24%)3992(Top 70%)
15K9.32 mi3.11 mi4040+3283840+2893840+2893543(Top 12%)3387(Top 21%)3387(Top 59%)
20K12.43 mi3.11 mi3844+1963662+1783662+1783331(Top 11%)3193(Top 20%)3193(Top 56%)
HALF13.11 mi0.68 mi3755+893578+843578+842292(Top 8%)2213(Top 14%)2213(Top 39%)
25K15.53 mi2.42 mi3631+1243468+1103468+1103234(Top 11%)3090(Top 19%)3090(Top 54%)
30K18.64 mi3.11 mi3465+1663310+1583310+1583061(Top 11%)2904(Top 18%)2904(Top 51%)
20M20.00 mi1.36 mi3433+323277+333277+333338(Top 12%)3114(Top 19%)3114(Top 54%)
21M21.00 mi1.00 mi3413+203256+213256+213450(Top 12%)3166(Top 19%)3166(Top 55%)
35K21.75 mi0.75 mi3334+793181+753181+751917(Top 7%)1832(Top 11%)1832(Top 32%)
23M23.00 mi1.25 mi3320+143166+153166+153687(Top 13%)3343(Top 20%)3343(Top 58%)
24M24.00 mi1.00 mi3313+73153+133153+134295(Top 15%)3792(Top 23%)3792(Top 66%)
40K24.85 mi0.85 mi3352-393187-343187-345563(Top 19%)4672(Top 29%)4672(Top 82%)
25.2M25.20 mi0.35 mi3379-273204-173204-176514(Top 22%)5228(Top 32%)5228(Top 91%)
FINISH26.22 mi1.02 mi3610-2313395-1913395-19111533(Top 40%)7852(Top 48%)7852(Top 137%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21
+97ft-345ft

Overall

3543

Males

3387

M18-39

3387

5K→10K

3.1 - 6.2 mi

Top 15%
×5
+79ft-138ft

Overall

4217

Males

3992

M18-39

3992

10K→15K

6.2 - 9.3 mi

Top 12%
×3
+67ft-78ft

Overall

3543

Males

3387

M18-39

3387

15K→20K

9.3 - 12.4 mi

Top 11%
×5
+106ft-86ft

Overall

3331

Males

3193

M18-39

3193

20K→HALF

12.4 - 13.1 mi

Top 8%
×2
+19ft-37ft

Overall

2292

Males

2213

M18-39

2213

HALF→25K

13.1 - 15.5 mi

Top 11%
×4
+66ft-88ft

Overall

3234

Males

3090

M18-39

3090

25K→30K

15.5 - 18.6 mi

Top 11%
×9
+181ft-148ft

Overall

3061

Males

2904

M18-39

2904

30K→20M

18.6 - 20.0 mi

Top 12%
×5
+64ft-50ft

Overall

3338

Males

3114

M18-39

3114

20M→21M

20.0 - 21.0 mi

Top 12%
×8
+106ft-24ft

Overall

3450

Males

3166

M18-39

3166

21M→35K

21.0 - 21.8 mi

Top 7%
×7
+17ft-86ft

Overall

1917

Males

1832

M18-39

1832

35K→23M

21.8 - 23.0 mi

Top 13%
×5
+23ft-63ft

Overall

3687

Males

3343

M18-39

3343

23M→24M

23.0 - 24.0 mi

Top 15%
×6
+12ft-82ft

Overall

4295

Males

3792

M18-39

3792

24M→40K

24.0 - 24.9 mi

Top 19%
×1
+6ft-20ft

Overall

5563

Males

4672

M18-39

4672

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1
+13ft-16ft

Overall

6514

Males

5228

M18-39

5228

25.2M→FINISH

25.2 - 26.2 mi

Top 40%
×2
+22ft-21ft

Overall

11533

Males

7852

M18-39

7852

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Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1564
Passed By
631
Net Change
+933
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4543
5K → 10K24469+175#4543#4368
10K → 15K3379+328#4368#4040
15K → 20K21519+196#4040#3844
20K → HALF890+89#3844#3755
HALF → 25K14016+124#3755#3631
25K → 30K18519+166#3631#3465
30K → 20M6735+32#3465#3433
20M → 21M4828+20#3433#3413
21M → 35K790+79#3413#3334
35K → 23M6753+14#3334#3320
23M → 24M4134+7#3320#3313
24M → 40K3170-39#3313#3352
40K → 25.2M936-27#3352#3379
25.2M → FINISH12243-231#3379#3610
TOTALS1564631+933

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📊

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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing