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BOSTON MARATHON 2026

Ian Marzke

Bib: 4214•M

CA

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 27%
Gender (Male)
#0 / 16340
Top 40%
Age Group (M18-39)
#0 / 5723
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
20:17
3.11 mi
Rank: #4435
Start → 5K
20:17 | 6:32/mi
10K
40:42
6.21 mi
Rank: #4597 (-162)
5K → 10K
20:25 | 6:35/mi
15K
1:01:10
9.32 mi
Rank: #4677 (-80)
10K → 15K
20:28 | 6:36/mi
20K
1:22:11
12.43 mi
Rank: #4883 (-206)
15K → 20K
21:01 | 6:46/mi
HALF
1:26:41
13.11 mi
Rank: #4892 (-9)
20K → HALF
4:30 | 6:37/mi
25K
1:43:32
15.53 mi
Rank: #5174 (-282)
HALF → 25K
16:51 | 6:57/mi
30K
2:05:36
18.64 mi
Rank: #5432 (-258)
25K → 30K
22:04 | 7:07/mi
20M
2:15:56
20.00 mi
Rank: #5820 (-388)
30K → 20M
10:20 | 7:37/mi
21M
2:24:11
21.00 mi
Rank: #6191 (-371)
20M → 21M
8:15 | 8:15/mi
35K
2:30:26
21.75 mi
Rank: #6584 (-393)
21M → 35K
6:15 | 8:22/mi
23M
2:40:25
23.00 mi
Rank: #6857 (-273)
35K → 23M
9:59 | 7:59/mi
24M
2:48:57
24.00 mi
Rank: #7237 (-380)
23M → 24M
8:32 | 8:32/mi
40K
2:56:27
24.85 mi
Rank: #7555 (-318)
24M → 40K
7:30 | 8:47/mi
25.2M
2:59:30
25.20 mi
Rank: #7646 (-91)
40K → 25.2M
3:03 | 8:51/mi
FINISH
3:07:38
26.22 mi
Rank: #7880 (-234)
25.2M → FINISH
8:08 | 7:59/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:26:41
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:40:57
Pace7:43 /mi
📊Positive Split: 16.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0320:176:3220:17
6:32
-
10K
6.21 mi10:43:2840:426:3420:25
6:35
+0:03
15K
9.32 mi11:03:561:01:106:3420:28
6:36
+0:01
20K
12.43 mi11:24:571:22:116:3721:01
6:46
+0:10
HALF
13.11 mi11:29:271:26:416:374:30
6:37
-0:09
25K
15.53 mi11:46:181:43:326:4016:51
6:57
+0:20
30K
18.64 mi12:08:222:05:366:4522:04
7:07
+0:10
20M
20.00 mi12:18:422:15:566:4810:20
7:37
+0:30
21M
21.00 mi12:26:572:24:116:528:15
8:15
+0:38
35K
21.75 mi12:33:122:30:266:566:15
8:22
+0:07
23M
23.00 mi12:43:112:40:256:599:59
7:59
-0:23
24M
24.00 mi12:51:432:48:577:038:32
8:32
+0:33
40K
24.85 mi12:59:132:56:277:067:30
8:47
+0:15
25.2M
25.20 mi13:02:162:59:307:083:03
8:51
+0:04
FINISH
26.22 mi13:10:243:07:387:108:08
7:59
-0:52

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

6:32 /mi

Average Pace

7:10 /mi

Slowest Pace

8:51 /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

2:05:36

67% of race

Time at Steady Pace

28:27

15% of race

Time at Slower Pace

33:35

18% of race

Average Pace: 7:09 /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 mi10:23:0320:176:3220:17
6:32
#4435
10K
6.21 mi10:43:2840:426:3420:25
6:35
#4597
15K
9.32 mi11:03:561:01:106:3420:28
6:36
#4677
20K
12.43 mi11:24:571:22:116:3721:01
6:46
#4883
HALF
13.11 mi11:29:271:26:416:374:30
6:37
#4892
25K
15.53 mi11:46:181:43:326:4016:51
6:57
#5174
30K
18.64 mi12:08:222:05:366:4522:04
7:07
#5432
20M
20.00 mi12:18:422:15:566:4810:20
7:37
#5820
21M
21.00 mi12:26:572:24:116:528:15
8:15
#6191
35K
21.75 mi12:33:122:30:266:566:15
8:22
#6584
23M
23.00 mi12:43:112:40:256:599:59
7:59
#6857
24M
24.00 mi12:51:432:48:577:038:32
8:32
#7237
40K
24.85 mi12:59:132:56:277:067:30
8:47
#7555
25.2M
25.20 mi13:02:162:59:307:083:03
8:51
#7646
FINISH
26.22 mi13:10:243:07:387:108:08
7:59
#7880
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 mi4435418541854843(Top 17%)4529(Top 28%)4529(Top 79%)
10K6.21 mi3.10 mi4597-1624324-1394324-1394808(Top 17%)4508(Top 28%)4508(Top 79%)
15K9.32 mi3.11 mi4677-804389-654389-654843(Top 17%)4529(Top 28%)4529(Top 79%)
20K12.43 mi3.11 mi4883-2064566-1774566-1775843(Top 20%)5295(Top 32%)5295(Top 93%)
HALF13.11 mi0.68 mi4892-94575-94575-95320(Top 18%)4897(Top 30%)4897(Top 86%)
25K15.53 mi2.42 mi5174-2824803-2284803-2287036(Top 24%)6147(Top 38%)6147(Top 107%)
30K18.64 mi3.11 mi5432-2584991-1884991-1886683(Top 23%)5776(Top 35%)5776(Top 101%)
20M20.00 mi1.36 mi5820-3885268-2775268-2779862(Top 34%)7504(Top 46%)7504(Top 131%)
21M21.00 mi1.00 mi6191-3715534-2665534-26611483(Top 40%)8187(Top 50%)8187(Top 143%)
35K21.75 mi0.75 mi6584-3935834-3005834-30016708(Top 58%)10482(Top 64%)10482(Top 183%)
23M23.00 mi1.25 mi6857-2736008-1746008-17412259(Top 42%)8467(Top 52%)8467(Top 148%)
24M24.00 mi1.00 mi7237-3806250-2426250-24217063(Top 59%)10483(Top 64%)10483(Top 183%)
40K24.85 mi0.85 mi7555-3186416-1666416-16617198(Top 59%)10496(Top 64%)10496(Top 183%)
25.2M25.20 mi0.35 mi7646-916461-456461-4513666(Top 47%)8878(Top 54%)8878(Top 155%)
FINISH26.22 mi1.02 mi7880-2346568-1076568-10715008(Top 52%)9500(Top 58%)9500(Top 166%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 17%
×21
+97ft-345ft

Overall

4843

Males

4529

M18-39

4529

5K→10K

3.1 - 6.2 mi

Top 17%
×5
+79ft-138ft

Overall

4808

Males

4508

M18-39

4508

10K→15K

6.2 - 9.3 mi

Top 17%
×3
+67ft-78ft

Overall

4843

Males

4529

M18-39

4529

15K→20K

9.3 - 12.4 mi

Top 20%
×5
+106ft-86ft

Overall

5843

Males

5295

M18-39

5295

20K→HALF

12.4 - 13.1 mi

Top 18%
×2
+19ft-37ft

Overall

5320

Males

4897

M18-39

4897

HALF→25K

13.1 - 15.5 mi

Top 24%
×4
+66ft-88ft

Overall

7036

Males

6147

M18-39

6147

25K→30K

15.5 - 18.6 mi

Top 23%
×9
+181ft-148ft

Overall

6683

Males

5776

M18-39

5776

30K→20M

18.6 - 20.0 mi

Top 34%
×5
+64ft-50ft

Overall

9862

Males

7504

M18-39

7504

20M→21M

20.0 - 21.0 mi

Top 40%
×8
+106ft-24ft

Overall

11483

Males

8187

M18-39

8187

21M→35K

21.0 - 21.8 mi

Top 58%
×7
+17ft-86ft

Overall

16708

Males

10482

M18-39

10482

35K→23M

21.8 - 23.0 mi

Top 42%
×5
+23ft-63ft

Overall

12259

Males

8467

M18-39

8467

23M→24M

23.0 - 24.0 mi

Top 59%
×6
+12ft-82ft

Overall

17063

Males

10483

M18-39

10483

24M→40K

24.0 - 24.9 mi

Top 59%
×1
+6ft-20ft

Overall

17198

Males

10496

M18-39

10496

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1
+13ft-16ft

Overall

13666

Males

8878

M18-39

8878

25.2M→FINISH

25.2 - 26.2 mi

Top 52%
×2
+22ft-21ft

Overall

15008

Males

9500

M18-39

9500

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
453
Passed By
2490
Net Change
-3445
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4435
5K → 10K81200-162#4435#4597
10K → 15K86166-80#4597#4677
15K → 20K46200-206#4677#4883
20K → HALF1423-9#4883#4892
HALF → 25K35200-282#4892#5174
25K → 30K64200-258#5174#5432
30K → 20M19200-388#5432#5820
20M → 21M12200-371#5820#6191
21M → 35K10200-393#6191#6584
35K → 23M28200-273#6584#6857
23M → 24M10200-380#6857#7237
24M → 40K18200-318#7237#7555
40K → 25.2M10101-91#7555#7646
25.2M → FINISH20200-234#7646#7880
TOTALS4532490-3445
📊

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