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BOSTON MARATHON 2026

Ernst Terhaar

Bib: 16307•M

MA

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0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M55-59)
#0 / 1491
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
23:54
3.11 mi
Rank: #14473
Start → 5K
23:54 | 7:42/mi
10K
48:11
6.21 mi
Rank: #15092 (-619)
5K → 10K
24:17 | 7:49/mi
15K
1:12:55
9.32 mi
Rank: #15611 (-519)
10K → 15K
24:44 | 7:58/mi
20K
1:38:03
12.43 mi
Rank: #15919 (-308)
15K → 20K
25:08 | 8:06/mi
HALF
1:43:27
13.11 mi
Rank: #15947 (-28)
20K → HALF
5:24 | 7:56/mi
25K
2:03:36
15.53 mi
Rank: #16226 (-279)
HALF → 25K
20:09 | 8:19/mi
30K
2:29:54
18.64 mi
Rank: #16288 (-62)
25K → 30K
26:18 | 8:28/mi
20M
2:42:02
20.00 mi
Rank: #16480 (-192)
30K → 20M
12:08 | 8:56/mi
21M
2:51:15
21.00 mi
Rank: #16491 (-11)
20M → 21M
9:13 | 9:13/mi
35K
2:57:37
21.75 mi
Rank: #16515 (-24)
21M → 35K
6:22 | 8:31/mi
23M
3:08:38
23.00 mi
Rank: #16563 (-48)
35K → 23M
11:01 | 8:49/mi
24M
3:17:08
24.00 mi
Rank: #16551 (+12)
23M → 24M
8:30 | 8:30/mi
40K
3:24:29
24.85 mi
Rank: #16525 (+26)
24M → 40K
7:21 | 8:36/mi
25.2M
3:27:45
25.20 mi
Rank: #16532 (-7)
40K → 25.2M
3:16 | 9:29/mi
FINISH
3:36:28
26.22 mi
Rank: #16609 (-77)
25.2M → FINISH
8:43 | 8:34/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:43:27
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:53:01
Pace8:38 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:05:0423:547:4223:54
7:42
-
10K
6.21 mi11:29:2148:117:4624:17
7:49
+0:07
15K
9.32 mi11:54:051:12:557:5024:44
7:58
+0:09
20K
12.43 mi12:19:131:38:037:5425:08
8:06
+0:08
HALF
13.11 mi12:24:371:43:277:545:24
7:56
-0:10
25K
15.53 mi12:44:462:03:367:5820:09
8:19
+0:23
30K
18.64 mi13:11:042:29:548:0326:18
8:28
+0:09
20M
20.00 mi13:23:122:42:028:0712:08
8:56
+0:28
21M
21.00 mi13:32:252:51:158:109:13
9:13
+0:17
35K
21.75 mi13:38:472:57:378:116:22
8:31
-0:42
23M
23.00 mi13:49:483:08:388:1311:01
8:49
+0:18
24M
24.00 mi13:58:183:17:088:138:30
8:30
-0:19
40K
24.85 mi14:05:393:24:298:147:21
8:36
+0:06
25.2M
25.20 mi14:08:553:27:458:153:16
9:29
+0:53
FINISH
26.22 mi14:17:383:36:288:168:43
8:34
-0:55

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

7:42 /mi

Average Pace

8:16 /mi

Slowest Pace

9:29 /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

1:43:27

48% of race

Time at Steady Pace

1:17:23

36% of race

Time at Slower Pace

35:38

16% of race

Average Pace: 8:15 /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 mi11:05:0423:547:4223:54
7:42
#14473
10K
6.21 mi11:29:2148:117:4624:17
7:49
#15092
15K
9.32 mi11:54:051:12:557:5024:44
7:58
#15611
20K
12.43 mi12:19:131:38:037:5425:08
8:06
#15919
HALF
13.11 mi12:24:371:43:277:545:24
7:56
#15947
25K
15.53 mi12:44:462:03:367:5820:09
8:19
#16226
30K
18.64 mi13:11:042:29:548:0326:18
8:28
#16288
20M
20.00 mi13:23:122:42:028:0712:08
8:56
#16480
21M
21.00 mi13:32:252:51:158:109:13
9:13
#16491
35K
21.75 mi13:38:472:57:378:116:22
8:31
#16515
23M
23.00 mi13:49:483:08:388:1311:01
8:49
#16563
24M
24.00 mi13:58:183:17:088:138:30
8:30
#16551
40K
24.85 mi14:05:393:24:298:147:21
8:36
#16525
25.2M
25.20 mi14:08:553:27:458:153:16
9:29
#16532
FINISH
26.22 mi14:17:383:36:288:168:43
8:34
#16609
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 mi14473100711007116682(Top 57%)10886(Top 67%)10886(Top 730%)
10K6.21 mi3.10 mi15092-61910244-17310244-17315775(Top 54%)10529(Top 64%)10529(Top 706%)
15K9.32 mi3.11 mi15611-51910434-19010434-19016682(Top 57%)10886(Top 67%)10886(Top 730%)
20K12.43 mi3.11 mi15919-30810553-11910553-11916782(Top 58%)10902(Top 67%)10902(Top 731%)
HALF13.11 mi0.68 mi15947-2810556-310556-316488(Top 57%)10796(Top 66%)10796(Top 724%)
25K15.53 mi2.42 mi16226-27910659-10310659-10317464(Top 60%)11131(Top 68%)11131(Top 747%)
30K18.64 mi3.11 mi16288-6210644+1510644+1516679(Top 57%)10695(Top 65%)10695(Top 717%)
20M20.00 mi1.36 mi16480-19210713-6910713-6918586(Top 64%)11439(Top 70%)11439(Top 767%)
21M21.00 mi1.00 mi16491-1110711+210711+217216(Top 59%)10770(Top 66%)10770(Top 722%)
35K21.75 mi0.75 mi16515-2410717-610717-617600(Top 61%)10853(Top 66%)10853(Top 728%)
23M23.00 mi1.25 mi16563-4810702+1510702+1517444(Top 60%)10721(Top 66%)10721(Top 719%)
24M24.00 mi1.00 mi16551+1210682+2010682+2016886(Top 58%)10421(Top 64%)10421(Top 699%)
40K24.85 mi0.85 mi16525+2610649+3310649+3316249(Top 56%)10072(Top 62%)10072(Top 676%)
25.2M25.20 mi0.35 mi16532-710638+1110638+1117141(Top 59%)10488(Top 64%)10488(Top 703%)
FINISH26.22 mi1.02 mi16609-7710656-1810656-1818403(Top 63%)11080(Top 68%)11080(Top 743%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21
+97ft-345ft

Overall

16682

Males

10886

M55-59

10886

5K→10K

3.1 - 6.2 mi

Top 54%
×5
+79ft-138ft

Overall

15775

Males

10529

M55-59

10529

10K→15K

6.2 - 9.3 mi

Top 57%
×3
+67ft-78ft

Overall

16682

Males

10886

M55-59

10886

15K→20K

9.3 - 12.4 mi

Top 58%
×5
+106ft-86ft

Overall

16782

Males

10902

M55-59

10902

20K→HALF

12.4 - 13.1 mi

Top 57%
×2
+19ft-37ft

Overall

16488

Males

10796

M55-59

10796

HALF→25K

13.1 - 15.5 mi

Top 60%
×4
+66ft-88ft

Overall

17464

Males

11131

M55-59

11131

25K→30K

15.5 - 18.6 mi

Top 57%
×9
+181ft-148ft

Overall

16679

Males

10695

M55-59

10695

30K→20M

18.6 - 20.0 mi

Top 64%
×5
+64ft-50ft

Overall

18586

Males

11439

M55-59

11439

20M→21M

20.0 - 21.0 mi

Top 59%
×8
+106ft-24ft

Overall

17216

Males

10770

M55-59

10770

21M→35K

21.0 - 21.8 mi

Top 61%
×7
+17ft-86ft

Overall

17600

Males

10853

M55-59

10853

35K→23M

21.8 - 23.0 mi

Top 60%
×5
+23ft-63ft

Overall

17444

Males

10721

M55-59

10721

23M→24M

23.0 - 24.0 mi

Top 58%
×6
+12ft-82ft

Overall

16886

Males

10421

M55-59

10421

24M→40K

24.0 - 24.9 mi

Top 56%
×1
+6ft-20ft

Overall

16249

Males

10072

M55-59

10072

40K→25.2M

24.9 - 25.2 mi

Top 59%
×1
+13ft-16ft

Overall

17141

Males

10488

M55-59

10488

25.2M→FINISH

25.2 - 26.2 mi

Top 63%
×2
+22ft-21ft

Overall

18403

Males

11080

M55-59

11080

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1057
Passed By
1838
Net Change
-2136
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14473
5K → 10K103200-619#14473#15092
10K → 15K77200-519#15092#15611
15K → 20K97200-308#15611#15919
20K → HALF2351-28#15919#15947
HALF → 25K80200-279#15947#16226
25K → 30K172200-62#16226#16288
30K → 20M47200-192#16288#16480
20M → 21M8798-11#16480#16491
21M → 35K6185-24#16491#16515
35K → 23M78126-48#16515#16563
23M → 24M7664+12#16563#16551
24M → 40K7953+26#16551#16525
40K → 25.2M3340-7#16525#16532
25.2M → FINISH44121-77#16532#16609
TOTALS10571838-2136
📊

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