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BOSTON MARATHON 2023

Nicholas Lanzer

Bib: 3575•M

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0:00
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Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 24%
Division (M18-39)
#0 / 5285
Top 48%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:28
Rank: #2782
Start → 5K
20:28 | 6:35/mi
10K· 6.21 mi
40:12
Rank: #2331 (+451)
5K → 10K
19:44 | 6:21/mi
15K· 9.32 mi
1:00:09
Rank: #2280 (+51)
10K → 15K
19:57 | 6:25/mi
20K· 12.43 mi
1:21:20
Rank: #2698 (-418)
15K → 20K
21:11 | 6:49/mi
Half· 13.11 mi
1:25:42
Rank: #2669 (+29)
20K → Half
4:22 | 6:24/mi
25K· 15.53 mi
1:41:59
Rank: #2775 (-106)
Half → 25K
16:17 | 6:43/mi
30K· 18.64 mi
2:04:09
Rank: #3117 (-342)
25K → 30K
22:10 | 7:08/mi
20M
2:14:03
Rank: #3307 (-190)
30K → 20M
9:54 | 7:17/mi
21M
2:21:45
Rank: #3452 (-145)
20M → 21M
7:42 | 7:42/mi
35K· 21.75 mi
2:26:53
Rank: #3491 (-39)
21M → 35K
5:08 | 6:52/mi
23M
2:35:55
Rank: #3558 (-67)
35K → 23M
9:02 | 7:13/mi
24M
2:42:54
Rank: #3618 (-60)
23M → 24M
6:59 | 6:59/mi
40K· 24.85 mi
2:49:02
Rank: #3660 (-42)
24M → 40K
6:08 | 7:10/mi
25.2M
2:51:46
Rank: #3730 (-70)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
2:58:54
Rank: #3822 (-92)
25.2M → Finish
7:08 | 7:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:25:42
Pace6:32 /mi
2nd Half
Distance13.11 mi
Time1:33:12
Pace7:07 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5420:286:3520:28
6:35
-
10K
6.21 mi10:41:3840:126:2819:44
6:21
-0:14
15K
9.32 mi11:01:351:00:096:2719:57
6:25
+0:04
20K
12.43 mi11:22:461:21:206:3321:11
6:49
+0:24
Half
13.11 mi11:27:081:25:426:324:22
6:24
-0:25
25K
15.53 mi11:43:251:41:596:3416:17
6:43
+0:19
30K
18.64 mi12:05:352:04:096:4022:10
7:08
+0:25
20M
20.00 mi12:15:292:14:036:429:54
7:17
+0:09
21M
21.00 mi12:23:112:21:456:457:42
7:42
+0:25
35K
21.75 mi12:28:192:26:536:455:08
6:52
-0:50
23M
23.00 mi12:37:212:35:556:479:02
7:13
+0:21
24M
24.00 mi12:44:202:42:546:476:59
6:59
-0:14
40K
24.85 mi12:50:282:49:026:486:08
7:10
+0:11
25.2M
25.20 mi12:53:122:51:466:492:44
7:56
+0:46
Finish
26.22 mi13:00:202:58:546:507:08
7:00
-0:56

Checkpoints & Pacing

📈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

6:21 /mi

Average Pace

6:50 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:20:48

45% of race

Time at Steady Pace

1:08:44

38% of race

Time at Slower Pace

29:22

16% of race

Average Pace: 6:49 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:21:5420:286:3520:28
6:35
#2782
10K
6.21 mi10:41:3840:126:2819:44
6:21
#2331
15K
9.32 mi11:01:351:00:096:2719:57
6:25
#2280
20K
12.43 mi11:22:461:21:206:3321:11
6:49
#2698
Half
13.11 mi11:27:081:25:426:324:22
6:24
#2669
25K
15.53 mi11:43:251:41:596:3416:17
6:43
#2775
30K
18.64 mi12:05:352:04:096:4022:10
7:08
#3117
20M
20.00 mi12:15:292:14:036:429:54
7:17
#3307
21M
21.00 mi12:23:112:21:456:457:42
7:42
#3452
35K
21.75 mi12:28:192:26:536:455:08
6:52
#3491
23M
23.00 mi12:37:212:35:556:479:02
7:13
#3558
24M
24.00 mi12:44:202:42:546:476:59
6:59
#3618
40K
24.85 mi12:50:282:49:026:486:08
7:10
#3660
25.2M
25.20 mi12:53:122:51:466:492:44
7:56
#3730
Finish
26.22 mi13:00:202:58:546:507:08
7:00
#3822
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi2782264726472223(Top 8%)2132(Top 14%)2132(Top 40%)
10K6.21 mi3.10 mi2331+4512226+4212226+4211991(Top 7%)1908(Top 13%)1908(Top 36%)
15K9.32 mi3.11 mi2280+512183+432183+432223(Top 8%)2132(Top 14%)2132(Top 40%)
20K12.43 mi3.11 mi2698-4182577-3942577-3944588(Top 17%)4273(Top 28%)4273(Top 81%)
Half13.11 mi0.68 mi2669+292550+272550+272267(Top 9%)2177(Top 14%)2177(Top 41%)
25K15.53 mi2.42 mi2775-1062652-1022652-1023492(Top 13%)3305(Top 22%)3305(Top 63%)
30K18.64 mi3.11 mi3117-3422968-3162968-3165101(Top 19%)4680(Top 31%)4680(Top 89%)
20M20.00 mi1.36 mi3307-1903133-1653133-1655526(Top 21%)4938(Top 33%)4938(Top 93%)
21M21.00 mi1.00 mi3452-1453268-1353268-1355575(Top 21%)4876(Top 32%)4876(Top 92%)
35K21.75 mi0.75 mi3491-393308-403308-404541(Top 17%)4132(Top 27%)4132(Top 78%)
23M23.00 mi1.25 mi3558-673360-523360-524843(Top 18%)4342(Top 29%)4342(Top 82%)
24M24.00 mi1.00 mi3618-603414-543414-544575(Top 17%)4111(Top 27%)4111(Top 78%)
40K24.85 mi0.85 mi3660-423445-313445-314716(Top 18%)4143(Top 27%)4143(Top 78%)
25.2M25.20 mi0.35 mi3730-703505-603505-605968(Top 22%)4899(Top 32%)4899(Top 93%)
Finish26.22 mi1.02 mi3822-923588-833588-835174(Top 19%)4382(Top 29%)4382(Top 83%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 8%
×21stories
+97ft-345ft

Overall

2223

Males

2132

M18-39

2132

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1991

Males

1908

M18-39

1908

10K→15K

6.2 - 9.3 mi

Top 8%
×3stories
+67ft-78ft

Overall

2223

Males

2132

M18-39

2132

15K→20K

9.3 - 12.4 mi

Top 17%
×5stories
+106ft-86ft

Overall

4588

Males

4273

M18-39

4273

20K→Half

12.4 - 13.1 mi

Top 9%
×2stories
+19ft-37ft

Overall

2267

Males

2177

M18-39

2177

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3492

Males

3305

M18-39

3305

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5101

Males

4680

M18-39

4680

30K→20M

18.6 - 20.0 mi

Top 21%
×5stories
+64ft-50ft

Overall

5526

Males

4938

M18-39

4938

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5575

Males

4876

M18-39

4876

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4541

Males

4132

M18-39

4132

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

4843

Males

4342

M18-39

4342

23M→24M

23.0 - 24.0 mi

Top 17%
×6stories
+12ft-82ft

Overall

4575

Males

4111

M18-39

4111

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

4716

Males

4143

M18-39

4143

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5968

Males

4899

M18-39

4899

25.2M→Finish

25.2 - 26.2 mi

Top 19%
×2stories
+22ft-21ft

Overall

5174

Males

4382

M18-39

4382

Passing Analysis

Category:
Athletes Passed
847
Passed By
1887
Net Change
-1040
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2782
5K → 10K46716+451#2782#2331
10K → 15K9948+51#2331#2280
15K → 20K8426-418#2280#2698
20K → Half334+29#2698#2669
Half → 25K26132-106#2669#2775
25K → 30K22364-342#2775#3117
30K → 20M18208-190#3117#3307
20M → 21M19164-145#3307#3452
21M → 35K2362-39#3452#3491
35K → 23M45112-67#3491#3558
23M → 24M2181-60#3558#3618
24M → 40K3476-42#3618#3660
40K → 25.2M878-70#3660#3730
25.2M → Finish24116-92#3730#3822
TOTALS8471887-1040
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing