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BOSTON MARATHON 2026

John Jantz

Bib: 371•M

MA

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 0.4%
Gender (Male)
#0 / 16340
Top 0.6%
Age Group (M18-39)
#0 / 5723
Top 2%
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· 3.11 mi
16:50
Rank: #182
Start → 5K
16:50 | 5:26/mi
10K· 6.21 mi
33:43
Rank: #173 (+9)
5K → 10K
16:53 | 5:27/mi
15K· 9.32 mi
50:47
Rank: #171 (+2)
10K → 15K
17:04 | 5:30/mi
20K· 12.43 mi
1:07:40
Rank: #158 (+13)
15K → 20K
16:53 | 5:27/mi
HALF· 13.11 mi
1:11:21
Rank: #157 (+1)
20K → HALF
3:41 | 5:25/mi
25K· 15.53 mi
1:24:34
Rank: #148 (+9)
HALF → 25K
13:13 | 5:27/mi
30K· 18.64 mi
1:41:36
Rank: #131 (+17)
25K → 30K
17:02 | 5:29/mi
20M
1:49:01
Rank: #123 (+8)
30K → 20M
7:25 | 5:28/mi
21M
1:54:42
Rank: #116 (+7)
20M → 21M
5:41 | 5:41/mi
35K· 21.75 mi
1:58:43
Rank: #115 (+1)
21M → 35K
4:01 | 5:23/mi
23M
2:05:37
Rank: #114 (+1)
35K → 23M
6:54 | 5:31/mi
24M
2:11:03
Rank: #112 (+2)
23M → 24M
5:26 | 5:26/mi
40K· 24.85 mi
2:15:42
Rank: #106 (+6)
24M → 40K
4:39 | 5:27/mi
25.2M
2:17:43
Rank: #105 (+1)
40K → 25.2M
2:01 | 5:51/mi
FINISH· 26.22 mi
2:23:08
Rank: #103 (+2)
25.2M → FINISH
5:25 | 5:19/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:11:21
Pace5:27 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:11:47
Pace5:29 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:16:5516:505:2616:50
5:26
-
10K
6.21 mi10:33:4833:435:2616:53
5:27
+0:01
15K
9.32 mi10:50:5250:475:2717:04
5:30
+0:03
20K
12.43 mi11:07:451:07:405:2716:53
5:27
-0:03
HALF
13.11 mi11:11:261:11:215:273:41
5:25
-0:02
25K
15.53 mi11:24:391:24:345:2713:13
5:27
+0:02
30K
18.64 mi11:41:411:41:365:2817:02
5:29
+0:02
20M
20.00 mi11:49:061:49:015:287:25
5:28
-0:01
21M
21.00 mi11:54:471:54:425:285:41
5:41
+0:13
35K
21.75 mi11:58:481:58:435:284:01
5:23
-0:18
23M
23.00 mi12:05:422:05:375:286:54
5:31
+0:08
24M
24.00 mi12:11:082:11:035:285:26
5:26
-0:05
40K
24.85 mi12:15:472:15:425:284:39
5:27
+0:01
25.2M
25.20 mi12:17:482:17:435:282:01
5:51
+0:24
FINISH
26.22 mi12:23:132:23:085:285:25
5:19
-0:32

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

5:19 /mi

Average Pace

5:28 /mi

Slowest Pace

5:51 /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

2:21:07

99% of race

Time at Steady Pace

2:01

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 5:28 /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 mi10:16:5516:505:2616:50
5:26
#182
10K
6.21 mi10:33:4833:435:2616:53
5:27
#173
15K
9.32 mi10:50:5250:475:2717:04
5:30
#171
20K
12.43 mi11:07:451:07:405:2716:53
5:27
#158
HALF
13.11 mi11:11:261:11:215:273:41
5:25
#157
25K
15.53 mi11:24:391:24:345:2713:13
5:27
#148
30K
18.64 mi11:41:411:41:365:2817:02
5:29
#131
20M
20.00 mi11:49:061:49:015:287:25
5:28
#123
21M
21.00 mi11:54:471:54:425:285:41
5:41
#116
35K
21.75 mi11:58:481:58:435:284:01
5:23
#115
23M
23.00 mi12:05:422:05:375:286:54
5:31
#114
24M
24.00 mi12:11:082:11:035:285:26
5:26
#112
40K
24.85 mi12:15:472:15:425:284:39
5:27
#106
25.2M
25.20 mi12:17:482:17:435:282:01
5:51
#105
FINISH
26.22 mi12:23:132:23:085:285:25
5:19
#103
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 mi182163163191(Top 0.7%)173(Top 1%)173(Top 3%)
10K6.21 mi3.10 mi173+9154+9154+9172(Top 0.6%)153(Top 0.9%)153(Top 3%)
15K9.32 mi3.11 mi171+2152+2152+2191(Top 0.7%)173(Top 1%)173(Top 3%)
20K12.43 mi3.11 mi158+13141+11141+11130(Top 0.4%)114(Top 0.7%)114(Top 2%)
HALF13.11 mi0.68 mi157+1140+1140+1153(Top 0.5%)137(Top 0.8%)137(Top 2%)
25K15.53 mi2.42 mi148+9131+9131+9113(Top 0.4%)113(Top 0.7%)113(Top 2%)
30K18.64 mi3.11 mi131+17118+13118+1397(Top 0.3%)88(Top 0.5%)88(Top 2%)
20M20.00 mi1.36 mi123+8111+7111+790(Top 0.3%)81(Top 0.5%)81(Top 1%)
21M21.00 mi1.00 mi116+7106+5106+586(Top 0.3%)78(Top 0.5%)78(Top 1%)
35K21.75 mi0.75 mi115+1105+1105+1133(Top 0.5%)119(Top 0.7%)119(Top 2%)
23M23.00 mi1.25 mi114+1104+1104+1120(Top 0.4%)109(Top 0.7%)109(Top 2%)
24M24.00 mi1.00 mi112+2101+3101+3152(Top 0.5%)140(Top 0.9%)140(Top 2%)
40K24.85 mi0.85 mi106+696+596+5104(Top 0.4%)96(Top 0.6%)96(Top 2%)
25.2M25.20 mi0.35 mi105+195+195+1106(Top 0.4%)99(Top 0.6%)99(Top 2%)
FINISH26.22 mi1.02 mi103+293+293+2163(Top 0.6%)154(Top 0.9%)154(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 0.7%
×21stories
+97ft-345ft

Overall

191

Males

173

M18-39

173

5K→10K

3.1 - 6.2 mi

Top 0.6%
×5stories
+79ft-138ft

Overall

172

Males

153

M18-39

153

10K→15K

6.2 - 9.3 mi

Top 0.7%
×3stories
+67ft-78ft

Overall

191

Males

173

M18-39

173

15K→20K

9.3 - 12.4 mi

Top 0.4%
×5stories
+106ft-86ft

Overall

130

Males

114

M18-39

114

20K→HALF

12.4 - 13.1 mi

Top 0.5%
×2stories
+19ft-37ft

Overall

153

Males

137

M18-39

137

HALF→25K

13.1 - 15.5 mi

Top 0.4%
×4stories
+66ft-88ft

Overall

113

Males

113

M18-39

113

25K→30K

15.5 - 18.6 mi

Top 0.3%
×9stories
+181ft-148ft

Overall

97

Males

88

M18-39

88

30K→20M

18.6 - 20.0 mi

Top 0.3%
×5stories
+64ft-50ft

Overall

90

Males

81

M18-39

81

20M→21M

20.0 - 21.0 mi

Top 0.3%
×8stories
+106ft-24ft

Overall

86

Males

78

M18-39

78

21M→35K

21.0 - 21.8 mi

Top 0.5%
×7stories
+17ft-86ft

Overall

133

Males

119

M18-39

119

35K→23M

21.8 - 23.0 mi

Top 0.4%
×5stories
+23ft-63ft

Overall

120

Males

109

M18-39

109

23M→24M

23.0 - 24.0 mi

Top 0.5%
×6stories
+12ft-82ft

Overall

152

Males

140

M18-39

140

24M→40K

24.0 - 24.9 mi

Top 0.4%
×1story
+6ft-20ft

Overall

104

Males

96

M18-39

96

40K→25.2M

24.9 - 25.2 mi

Top 0.4%
×1story
+13ft-16ft

Overall

106

Males

99

M18-39

99

25.2M→FINISH

25.2 - 26.2 mi

Top 0.6%
×2stories
+22ft-21ft

Overall

163

Males

154

M18-39

154

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
95
Passed By
16
Net Change
+79
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#182
5K → 10K112+9#182#173
10K → 15K97+2#173#171
15K → 20K130+13#171#158
20K → HALF10+1#158#157
HALF → 25K101+9#157#148
25K → 30K170+17#148#131
30K → 20M80+8#131#123
20M → 21M70+7#123#116
21M → 35K10+1#116#115
35K → 23M10+1#115#114
23M → 24M42+2#114#112
24M → 40K82+6#112#106
40K → 25.2M32+1#106#105
25.2M → FINISH20+2#105#103
TOTALS9516+79
📊

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

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing