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BOSTON MARATHON 2026

Thomas Arostegui

Bib: 19733•M

CA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 46%
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Top 48%
Age Group (M55-59)
#0 / 1491
Top 39%
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
23:44
3.11 mi
Rank: #13986
Start → 5K
23:44 | 7:39/mi
10K
47:48
6.21 mi
Rank: #14547 (-561)
5K → 10K
24:04 | 7:45/mi
15K
1:11:42
9.32 mi
Rank: #14477 (+70)
10K → 15K
23:54 | 7:42/mi
20K
1:35:47
12.43 mi
Rank: #14365 (+112)
15K → 20K
24:05 | 7:46/mi
HALF
1:40:58
13.11 mi
Rank: #14329 (+36)
20K → HALF
5:11 | 7:37/mi
25K
1:59:55
15.53 mi
Rank: #14223 (+106)
HALF → 25K
18:57 | 7:49/mi
30K
2:24:32
18.64 mi
Rank: #13950 (+273)
25K → 30K
24:37 | 7:56/mi
20M
2:35:24
20.00 mi
Rank: #13833 (+117)
30K → 20M
10:52 | 8:01/mi
21M
2:43:52
21.00 mi
Rank: #13762 (+71)
20M → 21M
8:28 | 8:28/mi
35K
2:49:42
21.75 mi
Rank: #13720 (+42)
21M → 35K
5:50 | 7:48/mi
23M
2:59:41
23.00 mi
Rank: #13610 (+110)
35K → 23M
9:59 | 7:59/mi
24M
3:07:29
24.00 mi
Rank: #13530 (+80)
23M → 24M
7:48 | 7:48/mi
40K
3:14:15
24.85 mi
Rank: #13467 (+63)
24M → 40K
6:46 | 7:55/mi
25.2M
3:17:13
25.20 mi
Rank: #13433 (+34)
40K → 25.2M
2:58 | 8:37/mi
FINISH
3:24:48
26.22 mi
Rank: #13308 (+125)
25.2M → FINISH
7:35 | 7:27/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:40:58
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time1:43:50
Pace7:56 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:08:1123:447:3923:44
7:39
-
10K
6.21 mi11:32:1547:487:4224:04
7:45
+0:06
15K
9.32 mi11:56:091:11:427:4223:54
7:42
-0:03
20K
12.43 mi12:20:141:35:477:4324:05
7:46
+0:04
HALF
13.11 mi12:25:251:40:587:435:11
7:37
-0:09
25K
15.53 mi12:44:221:59:557:4418:57
7:49
+0:12
30K
18.64 mi13:08:592:24:327:4624:37
7:56
+0:07
20M
20.00 mi13:19:512:35:247:4710:52
8:01
+0:05
21M
21.00 mi13:28:192:43:527:498:28
8:28
+0:27
35K
21.75 mi13:34:092:49:427:495:50
7:48
-0:40
23M
23.00 mi13:44:082:59:417:499:59
7:59
+0:11
24M
24.00 mi13:51:563:07:297:497:48
7:48
-0:11
40K
24.85 mi13:58:423:14:157:496:46
7:55
+0:07
25.2M
25.20 mi14:01:403:17:137:502:58
8:37
+0:42
FINISH
26.22 mi14:09:153:24:487:507:35
7:27
-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

7:27 /mi

Average Pace

7:49 /mi

Slowest Pace

8:37 /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

3:13:22

94% of race

Time at Steady Pace

11:26

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:49 /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 mi11:08:1123:447:3923:44
7:39
#13986
10K
6.21 mi11:32:1547:487:4224:04
7:45
#14547
15K
9.32 mi11:56:091:11:427:4223:54
7:42
#14477
20K
12.43 mi12:20:141:35:477:4324:05
7:46
#14365
HALF
13.11 mi12:25:251:40:587:435:11
7:37
#14329
25K
15.53 mi12:44:221:59:557:4418:57
7:49
#14223
30K
18.64 mi13:08:592:24:327:4624:37
7:56
#13950
20M
20.00 mi13:19:512:35:247:4710:52
8:01
#13833
21M
21.00 mi13:28:192:43:527:498:28
8:28
#13762
35K
21.75 mi13:34:092:49:427:495:50
7:48
#13720
23M
23.00 mi13:44:082:59:417:499:59
7:59
#13610
24M
24.00 mi13:51:563:07:297:497:48
7:48
#13530
40K
24.85 mi13:58:423:14:157:496:46
7:55
#13467
25.2M
25.20 mi14:01:403:17:137:502:58
8:37
#13433
FINISH
26.22 mi14:09:153:24:487:507:35
7:27
#13308
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi139869859985914474(Top 50%)9982(Top 61%)9982(Top 669%)
10K6.21 mi3.10 mi14547-56110067-20810067-20815122(Top 52%)10275(Top 63%)10275(Top 689%)
15K9.32 mi3.11 mi14477+7010009+5810009+5814474(Top 50%)9982(Top 61%)9982(Top 669%)
20K12.43 mi3.11 mi14365+1129955+549955+5414131(Top 49%)9793(Top 60%)9793(Top 657%)
HALF13.11 mi0.68 mi14329+369939+169939+1613823(Top 48%)9718(Top 59%)9718(Top 652%)
25K15.53 mi2.42 mi14223+1069871+689871+6813931(Top 48%)9627(Top 59%)9627(Top 646%)
30K18.64 mi3.11 mi13950+2739730+1419730+14112923(Top 45%)9074(Top 56%)9074(Top 609%)
20M20.00 mi1.36 mi13833+1179648+829648+8212822(Top 44%)8935(Top 55%)8935(Top 599%)
21M21.00 mi1.00 mi13762+719594+549594+5412883(Top 44%)8847(Top 54%)8847(Top 593%)
35K21.75 mi0.75 mi13720+429558+369558+3612995(Top 45%)8884(Top 54%)8884(Top 596%)
23M23.00 mi1.25 mi13610+1109474+849474+8412280(Top 42%)8488(Top 52%)8488(Top 569%)
24M24.00 mi1.00 mi13530+809421+539421+5312278(Top 42%)8370(Top 51%)8370(Top 561%)
40K24.85 mi0.85 mi13467+639370+519370+5111860(Top 41%)8116(Top 50%)8116(Top 544%)
25.2M25.20 mi0.35 mi13433+349348+229348+2212241(Top 42%)8223(Top 50%)8223(Top 552%)
FINISH26.22 mi1.02 mi13308+1259266+829266+8210955(Top 38%)7588(Top 46%)7588(Top 509%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21
+97ft-345ft

Overall

14474

Males

9982

M55-59

9982

5K→10K

3.1 - 6.2 mi

Top 52%
×5
+79ft-138ft

Overall

15122

Males

10275

M55-59

10275

10K→15K

6.2 - 9.3 mi

Top 50%
×3
+67ft-78ft

Overall

14474

Males

9982

M55-59

9982

15K→20K

9.3 - 12.4 mi

Top 49%
×5
+106ft-86ft

Overall

14131

Males

9793

M55-59

9793

20K→HALF

12.4 - 13.1 mi

Top 48%
×2
+19ft-37ft

Overall

13823

Males

9718

M55-59

9718

HALF→25K

13.1 - 15.5 mi

Top 48%
×4
+66ft-88ft

Overall

13931

Males

9627

M55-59

9627

25K→30K

15.5 - 18.6 mi

Top 45%
×9
+181ft-148ft

Overall

12923

Males

9074

M55-59

9074

30K→20M

18.6 - 20.0 mi

Top 44%
×5
+64ft-50ft

Overall

12822

Males

8935

M55-59

8935

20M→21M

20.0 - 21.0 mi

Top 44%
×8
+106ft-24ft

Overall

12883

Males

8847

M55-59

8847

21M→35K

21.0 - 21.8 mi

Top 45%
×7
+17ft-86ft

Overall

12995

Males

8884

M55-59

8884

35K→23M

21.8 - 23.0 mi

Top 42%
×5
+23ft-63ft

Overall

12280

Males

8488

M55-59

8488

23M→24M

23.0 - 24.0 mi

Top 42%
×6
+12ft-82ft

Overall

12278

Males

8370

M55-59

8370

24M→40K

24.0 - 24.9 mi

Top 41%
×1
+6ft-20ft

Overall

11860

Males

8116

M55-59

8116

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1
+13ft-16ft

Overall

12241

Males

8223

M55-59

8223

25.2M→FINISH

25.2 - 26.2 mi

Top 38%
×2
+22ft-21ft

Overall

10955

Males

7588

M55-59

7588

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2065*
Passed By
905
Net Change
+678
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13986
5K → 10K121200-561#13986#14547
10K → 15K253*183+70#14547#14477
15K → 20K208*96+112#14477#14365
20K → HALF5014+36#14365#14329
HALF → 25K19286+106#14329#14223
25K → 30K337*64+273#14223#13950
30K → 20M15740+117#13950#13833
20M → 21M12150+71#13833#13762
21M → 35K6826+42#13762#13720
35K → 23M15646+110#13720#13610
23M → 24M11030+80#13610#13530
24M → 40K9936+63#13530#13467
40K → 25.2M4612+34#13467#13433
25.2M → FINISH14722+125#13433#13308
TOTALS2065*905+678

* 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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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing