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BOSTON MARATHON 2026

Efrain Autzbach

Bib: 10807•M

QC

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M45-49)
#0 / 2413
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
23:19
3.11 mi
Rank: #12811
Start → 5K
23:19 | 7:31/mi
10K
46:50
6.21 mi
Rank: #13161 (-350)
5K → 10K
23:31 | 7:35/mi
15K
1:10:41
9.32 mi
Rank: #13538 (-377)
10K → 15K
23:51 | 7:41/mi
20K
1:34:51
12.43 mi
Rank: #13700 (-162)
15K → 20K
24:10 | 7:47/mi
HALF
1:40:07
13.11 mi
Rank: #13757 (-57)
20K → HALF
5:16 | 7:44/mi
25K
1:59:03
15.53 mi
Rank: #13757
HALF → 25K
18:56 | 7:49/mi
30K
2:24:09
18.64 mi
Rank: #13785 (-28)
25K → 30K
25:06 | 8:05/mi
20M
2:35:23
20.00 mi
Rank: #13825 (-40)
30K → 20M
11:14 | 8:17/mi
21M
2:45:21
21.00 mi
Rank: #14332 (-507)
20M → 21M
9:58 | 9:58/mi
35K
2:52:28
21.75 mi
Rank: #14763 (-431)
21M → 35K
7:07 | 9:31/mi
23M
3:03:32
23.00 mi
Rank: #14965 (-202)
35K → 23M
11:04 | 8:51/mi
24M
3:12:36
24.00 mi
Rank: #15249 (-284)
23M → 24M
9:04 | 9:04/mi
40K
3:20:25
24.85 mi
Rank: #15429 (-180)
24M → 40K
7:49 | 9:09/mi
25.2M
3:23:45
25.20 mi
Rank: #15469 (-40)
40K → 25.2M
3:20 | 9:40/mi
FINISH
3:32:37
26.22 mi
Rank: #15651 (-182)
25.2M → FINISH
8:52 | 8:43/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:40:07
Pace7:39 /mi
2nd Half
Distance13.11 mi
Time1:52:30
Pace8:35 /mi
📊Positive Split: 12.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:40:4023:197:3123:19
7:31
-
10K
6.21 mi11:04:1146:507:3323:31
7:35
+0:04
15K
9.32 mi11:28:021:10:417:3623:51
7:41
+0:06
20K
12.43 mi11:52:121:34:517:3824:10
7:47
+0:06
HALF
13.11 mi11:57:281:40:077:395:16
7:44
-0:03
25K
15.53 mi12:16:241:59:037:4018:56
7:49
+0:05
30K
18.64 mi12:41:302:24:097:4425:06
8:05
+0:16
20M
20.00 mi12:52:442:35:237:4711:14
8:17
+0:12
21M
21.00 mi13:02:422:45:217:539:58
9:58
+1:41
35K
21.75 mi13:09:492:52:287:567:07
9:31
-0:27
23M
23.00 mi13:20:533:03:327:5911:04
8:51
-0:40
24M
24.00 mi13:29:573:12:368:029:04
9:04
+0:13
40K
24.85 mi13:37:463:20:258:047:49
9:09
+0:05
25.2M
25.20 mi13:41:063:23:458:063:20
9:40
+0:31
FINISH
26.22 mi13:49:583:32:378:078:52
8:43
-0:57

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

7:31 /mi

Average Pace

8:07 /mi

Slowest Pace

9:58 /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

1:59:03

56% of race

Time at Steady Pace

36:20

17% of race

Time at Slower Pace

57:14

27% of race

Average Pace: 8:07 /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 mi10:40:4023:197:3123:19
7:31
#12811
10K
6.21 mi11:04:1146:507:3323:31
7:35
#13161
15K
9.32 mi11:28:021:10:417:3623:51
7:41
#13538
20K
12.43 mi11:52:121:34:517:3824:10
7:47
#13700
HALF
13.11 mi11:57:281:40:077:395:16
7:44
#13757
25K
15.53 mi12:16:241:59:037:4018:56
7:49
#13757
30K
18.64 mi12:41:302:24:097:4425:06
8:05
#13785
20M
20.00 mi12:52:442:35:237:4711:14
8:17
#13825
21M
21.00 mi13:02:422:45:217:539:58
9:58
#14332
35K
21.75 mi13:09:492:52:287:567:07
9:31
#14763
23M
23.00 mi13:20:533:03:327:5911:04
8:51
#14965
24M
24.00 mi13:29:573:12:368:029:04
9:04
#15249
40K
24.85 mi13:37:463:20:258:047:49
9:09
#15429
25.2M
25.20 mi13:41:063:23:458:063:20
9:40
#15469
FINISH
26.22 mi13:49:583:32:378:078:52
8:43
#15651
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi128119387938714330(Top 49%)9933(Top 61%)9933(Top 412%)
10K6.21 mi3.10 mi13161-3509492-1059492-10513555(Top 47%)9643(Top 59%)9643(Top 400%)
15K9.32 mi3.11 mi13538-3779639-1479639-14714330(Top 49%)9933(Top 61%)9933(Top 412%)
20K12.43 mi3.11 mi13700-1629679-409679-4014336(Top 49%)9881(Top 60%)9881(Top 409%)
HALF13.11 mi0.68 mi13757-579702-239702-2314907(Top 51%)10190(Top 62%)10190(Top 422%)
25K15.53 mi2.42 mi137579678+249678+2413901(Top 48%)9617(Top 59%)9617(Top 399%)
30K18.64 mi3.11 mi13785-289660+189660+1814070(Top 48%)9586(Top 59%)9586(Top 397%)
20M20.00 mi1.36 mi13825-409646+149646+1414712(Top 51%)9783(Top 60%)9783(Top 405%)
21M21.00 mi1.00 mi14332-5079841-1959841-19520288(Top 70%)12203(Top 75%)12203(Top 506%)
35K21.75 mi0.75 mi14763-4319976-1359976-13521777(Top 75%)12847(Top 79%)12847(Top 532%)
23M23.00 mi1.25 mi14965-20210027-5110027-5117671(Top 61%)10813(Top 66%)10813(Top 448%)
24M24.00 mi1.00 mi15249-28410130-10310130-10319724(Top 68%)11733(Top 72%)11733(Top 486%)
40K24.85 mi0.85 mi15429-18010178-4810178-4819003(Top 65%)11352(Top 69%)11352(Top 470%)
25.2M25.20 mi0.35 mi15469-4010189-1110189-1118026(Top 62%)10897(Top 67%)10897(Top 452%)
FINISH26.22 mi1.02 mi15651-18210248-5910248-5919130(Top 66%)11424(Top 70%)11424(Top 473%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21
+97ft-345ft

Overall

14330

Males

9933

M45-49

9933

5K→10K

3.1 - 6.2 mi

Top 47%
×5
+79ft-138ft

Overall

13555

Males

9643

M45-49

9643

10K→15K

6.2 - 9.3 mi

Top 49%
×3
+67ft-78ft

Overall

14330

Males

9933

M45-49

9933

15K→20K

9.3 - 12.4 mi

Top 49%
×5
+106ft-86ft

Overall

14336

Males

9881

M45-49

9881

20K→HALF

12.4 - 13.1 mi

Top 51%
×2
+19ft-37ft

Overall

14907

Males

10190

M45-49

10190

HALF→25K

13.1 - 15.5 mi

Top 48%
×4
+66ft-88ft

Overall

13901

Males

9617

M45-49

9617

25K→30K

15.5 - 18.6 mi

Top 48%
×9
+181ft-148ft

Overall

14070

Males

9586

M45-49

9586

30K→20M

18.6 - 20.0 mi

Top 51%
×5
+64ft-50ft

Overall

14712

Males

9783

M45-49

9783

20M→21M

20.0 - 21.0 mi

Top 70%
×8
+106ft-24ft

Overall

20288

Males

12203

M45-49

12203

21M→35K

21.0 - 21.8 mi

Top 75%
×7
+17ft-86ft

Overall

21777

Males

12847

M45-49

12847

35K→23M

21.8 - 23.0 mi

Top 61%
×5
+23ft-63ft

Overall

17671

Males

10813

M45-49

10813

23M→24M

23.0 - 24.0 mi

Top 68%
×6
+12ft-82ft

Overall

19724

Males

11733

M45-49

11733

24M→40K

24.0 - 24.9 mi

Top 65%
×1
+6ft-20ft

Overall

19003

Males

11352

M45-49

11352

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1
+13ft-16ft

Overall

18026

Males

10897

M45-49

10897

25.2M→FINISH

25.2 - 26.2 mi

Top 66%
×2
+22ft-21ft

Overall

19130

Males

11424

M45-49

11424

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
942
Passed By
3782
Net Change
-2840
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12811
5K → 10K140490-350#12811#13161
10K → 15K97474-377#13161#13538
15K → 20K114276-162#13538#13700
20K → HALF1875-57#13700#13757
HALF → 25K1261260#13757#13757
25K → 30K174202-28#13757#13785
30K → 20M95135-40#13785#13825
20M → 21M21528-507#13825#14332
21M → 35K13444-431#14332#14763
35K → 23M47249-202#14763#14965
23M → 24M28312-284#14965#15249
24M → 40K33213-180#15249#15429
40K → 25.2M2161-40#15429#15469
25.2M → FINISH15197-182#15469#15651
TOTALS9423782-2840
📊

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