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BOSTON MARATHON 2026

Rob Ijsseldijk

Bib: 19636•M

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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 49%
Age Group (M55-59)
#0 / 1491
Top 40%
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
23:32
3.11 mi
Rank: #13401
Start → 5K
23:32 | 7:35/mi
10K
47:24
6.21 mi
Rank: #13994 (-593)
5K → 10K
23:52 | 7:41/mi
15K
1:11:47
9.32 mi
Rank: #14560 (-566)
10K → 15K
24:23 | 7:51/mi
20K
1:35:34
12.43 mi
Rank: #14226 (+334)
15K → 20K
23:47 | 7:40/mi
HALF
1:40:48
13.11 mi
Rank: #14226
20K → HALF
5:14 | 7:41/mi
25K
1:59:27
15.53 mi
Rank: #13967 (+259)
HALF → 25K
18:39 | 7:42/mi
30K
2:24:30
18.64 mi
Rank: #13938 (+29)
25K → 30K
25:03 | 8:04/mi
20M
2:35:22
20.00 mi
Rank: #13813 (+125)
30K → 20M
10:52 | 8:01/mi
21M
2:43:42
21.00 mi
Rank: #13696 (+117)
20M → 21M
8:20 | 8:20/mi
35K
2:49:26
21.75 mi
Rank: #13621 (+75)
21M → 35K
5:44 | 7:40/mi
23M
2:59:56
23.00 mi
Rank: #13709 (-88)
35K → 23M
10:30 | 8:24/mi
24M
3:07:44
24.00 mi
Rank: #13637 (+72)
23M → 24M
7:48 | 7:48/mi
40K
3:14:31
24.85 mi
Rank: #13559 (+78)
24M → 40K
6:47 | 7:57/mi
25.2M
3:17:26
25.20 mi
Rank: #13505 (+54)
40K → 25.2M
2:55 | 8:28/mi
FINISH
3:25:11
26.22 mi
Rank: #13425 (+80)
25.2M → FINISH
7:45 | 7:37/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:40:48
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:44:23
Pace7:58 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:07:4923:327:3523:32
7:35
-
10K
6.21 mi11:31:4147:247:3823:52
7:41
+0:06
15K
9.32 mi11:56:041:11:477:4324:23
7:51
+0:10
20K
12.43 mi12:19:511:35:347:4223:47
7:40
-0:11
HALF
13.11 mi12:25:051:40:487:425:14
7:41
+0:01
25K
15.53 mi12:43:441:59:277:4218:39
7:42
+0:01
30K
18.64 mi13:08:472:24:307:4625:03
8:04
+0:22
20M
20.00 mi13:19:392:35:227:4710:52
8:01
-0:03
21M
21.00 mi13:27:592:43:427:488:20
8:20
+0:19
35K
21.75 mi13:33:432:49:267:485:44
7:40
-0:40
23M
23.00 mi13:44:132:59:567:5010:30
8:24
+0:44
24M
24.00 mi13:52:013:07:447:507:48
7:48
-0:36
40K
24.85 mi13:58:483:14:317:506:47
7:57
+0:09
25.2M
25.20 mi14:01:433:17:267:512:55
8:28
+0:31
FINISH
26.22 mi14:09:283:25:117:507:45
7:37
-0:51

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

7:35 /mi

Average Pace

7:50 /mi

Slowest Pace

8:28 /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

3:11:46

93% of race

Time at Steady Pace

13:25

7% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:50 /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 mi11:07:4923:327:3523:32
7:35
#13401
10K
6.21 mi11:31:4147:247:3823:52
7:41
#13994
15K
9.32 mi11:56:041:11:477:4324:23
7:51
#14560
20K
12.43 mi12:19:511:35:347:4223:47
7:40
#14226
HALF
13.11 mi12:25:051:40:487:425:14
7:41
#14226
25K
15.53 mi12:43:441:59:277:4218:39
7:42
#13967
30K
18.64 mi13:08:472:24:307:4625:03
8:04
#13938
20M
20.00 mi13:19:392:35:227:4710:52
8:01
#13813
21M
21.00 mi13:27:592:43:427:488:20
8:20
#13696
35K
21.75 mi13:33:432:49:267:485:44
7:40
#13621
23M
23.00 mi13:44:132:59:567:5010:30
8:24
#13709
24M
24.00 mi13:52:013:07:447:507:48
7:48
#13637
40K
24.85 mi13:58:483:14:317:506:47
7:57
#13559
25.2M
25.20 mi14:01:433:17:267:512:55
8:28
#13505
FINISH
26.22 mi14:09:283:25:117:507:45
7:37
#13425
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 mi134019636963615735(Top 54%)10479(Top 64%)10479(Top 703%)
10K6.21 mi3.10 mi13994-5939855-2199855-21914584(Top 50%)10074(Top 62%)10074(Top 676%)
15K9.32 mi3.11 mi14560-56610039-18410039-18415735(Top 54%)10479(Top 64%)10479(Top 703%)
20K12.43 mi3.11 mi14226+3349892+1479892+14713301(Top 46%)9424(Top 58%)9424(Top 632%)
HALF13.11 mi0.68 mi142269890+29890+214465(Top 50%)9974(Top 61%)9974(Top 669%)
25K15.53 mi2.42 mi13967+2599776+1149776+11412959(Top 45%)9202(Top 56%)9202(Top 617%)
30K18.64 mi3.11 mi13938+299726+509726+5013949(Top 48%)9530(Top 58%)9530(Top 639%)
20M20.00 mi1.36 mi13813+1259641+859641+8512825(Top 44%)8938(Top 55%)8938(Top 599%)
21M21.00 mi1.00 mi13696+1179564+779564+7712064(Top 42%)8466(Top 52%)8466(Top 568%)
35K21.75 mi0.75 mi13621+759515+499515+4912051(Top 42%)8463(Top 52%)8463(Top 568%)
23M23.00 mi1.25 mi13709-889518-39518-314996(Top 52%)9674(Top 59%)9674(Top 649%)
24M24.00 mi1.00 mi13637+729464+549464+5412281(Top 42%)8373(Top 51%)8373(Top 562%)
40K24.85 mi0.85 mi13559+789420+449420+4412022(Top 41%)8194(Top 50%)8194(Top 550%)
25.2M25.20 mi0.35 mi13505+549386+349386+3411304(Top 39%)7769(Top 48%)7769(Top 521%)
FINISH26.22 mi1.02 mi13425+809326+609326+6012249(Top 42%)8211(Top 50%)8211(Top 551%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 54%
×21
+97ft-345ft

Overall

15735

Males

10479

M55-59

10479

5K→10K

3.1 - 6.2 mi

Top 50%
×5
+79ft-138ft

Overall

14584

Males

10074

M55-59

10074

10K→15K

6.2 - 9.3 mi

Top 54%
×3
+67ft-78ft

Overall

15735

Males

10479

M55-59

10479

15K→20K

9.3 - 12.4 mi

Top 46%
×5
+106ft-86ft

Overall

13301

Males

9424

M55-59

9424

20K→HALF

12.4 - 13.1 mi

Top 50%
×2
+19ft-37ft

Overall

14465

Males

9974

M55-59

9974

HALF→25K

13.1 - 15.5 mi

Top 45%
×4
+66ft-88ft

Overall

12959

Males

9202

M55-59

9202

25K→30K

15.5 - 18.6 mi

Top 48%
×9
+181ft-148ft

Overall

13949

Males

9530

M55-59

9530

30K→20M

18.6 - 20.0 mi

Top 44%
×5
+64ft-50ft

Overall

12825

Males

8938

M55-59

8938

20M→21M

20.0 - 21.0 mi

Top 42%
×8
+106ft-24ft

Overall

12064

Males

8466

M55-59

8466

21M→35K

21.0 - 21.8 mi

Top 42%
×7
+17ft-86ft

Overall

12051

Males

8463

M55-59

8463

35K→23M

21.8 - 23.0 mi

Top 52%
×5
+23ft-63ft

Overall

14996

Males

9674

M55-59

9674

23M→24M

23.0 - 24.0 mi

Top 42%
×6
+12ft-82ft

Overall

12281

Males

8373

M55-59

8373

24M→40K

24.0 - 24.9 mi

Top 41%
×1
+6ft-20ft

Overall

12022

Males

8194

M55-59

8194

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1
+13ft-16ft

Overall

11304

Males

7769

M55-59

7769

25.2M→FINISH

25.2 - 26.2 mi

Top 42%
×2
+22ft-21ft

Overall

12249

Males

8211

M55-59

8211

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1924
Passed By
1948
Net Change
-24
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13401
5K → 10K109702-593#13401#13994
10K → 15K76642-566#13994#14560
15K → 20K36531+334#14560#14226
20K → HALF31310#14226#14226
HALF → 25K28526+259#14226#13967
25K → 30K198169+29#13967#13938
30K → 20M16237+125#13938#13813
20M → 21M15134+117#13813#13696
21M → 35K9217+75#13696#13621
35K → 23M79167-88#13621#13709
23M → 24M10230+72#13709#13637
24M → 40K10830+78#13637#13559
40K → 25.2M573+54#13559#13505
25.2M → FINISH10929+80#13505#13425
TOTALS19241948-24
📊

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