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BOSTON MARATHON 2023

Nathaniel Buchheit

Bib: 841•M

CO

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:46
Rank: #13799
Start → 5K
24:46 | 7:58/mi
10K· 6.21 mi
49:44
Rank: #14411 (-612)
5K → 10K
24:58 | 8:02/mi
15K· 9.32 mi
1:15:00
Rank: #14713 (-302)
10K → 15K
25:16 | 8:08/mi
20K· 12.43 mi
1:40:32
Rank: #14782 (-69)
15K → 20K
25:32 | 8:13/mi
Half· 13.11 mi
1:46:39
Rank: #15141 (-359)
20K → Half
6:07 | 8:58/mi
25K· 15.53 mi
2:08:36
Rank: #15879 (-738)
Half → 25K
21:57 | 9:03/mi
30K· 18.64 mi
2:34:43
Rank: #15472 (+407)
25K → 30K
26:07 | 8:24/mi
20M
2:46:03
Rank: #15249 (+223)
30K → 20M
11:20 | 8:20/mi
21M
2:54:57
Rank: #15088 (+161)
20M → 21M
8:54 | 8:54/mi
35K· 21.75 mi
3:01:01
Rank: #15008 (+80)
21M → 35K
6:04 | 8:07/mi
23M
3:11:26
Rank: #14820 (+188)
35K → 23M
10:25 | 8:19/mi
24M
3:19:31
Rank: #14672 (+148)
23M → 24M
8:05 | 8:05/mi
40K· 24.85 mi
3:26:36
Rank: #14541 (+131)
24M → 40K
7:05 | 8:17/mi
25.2M
3:29:39
Rank: #14490 (+51)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:37:46
Rank: #14376 (+114)
25.2M → Finish
8:07 | 7:58/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:39
Pace8:08 /mi
2nd Half
Distance13.11 mi
Time1:51:07
Pace8:29 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:29:4624:467:5824:46
7:58
-
10K
6.21 mi10:54:4449:448:0024:58
8:02
+0:04
15K
9.32 mi11:20:001:15:008:0325:16
8:08
+0:06
20K
12.43 mi11:45:321:40:328:0525:32
8:13
+0:05
Half
13.11 mi11:51:391:46:398:086:07
8:58
+0:45
25K
15.53 mi12:13:362:08:368:1721:57
9:03
+0:05
30K
18.64 mi12:39:432:34:438:1826:07
8:24
-0:39
20M
20.00 mi12:51:032:46:038:1811:20
8:20
-0:04
21M
21.00 mi12:59:572:54:578:208:54
8:54
+0:34
35K
21.75 mi13:06:013:01:018:196:04
8:07
-0:47
23M
23.00 mi13:16:263:11:268:1910:25
8:19
+0:12
24M
24.00 mi13:24:313:19:318:198:05
8:05
-0:14
40K
24.85 mi13:31:363:26:368:197:05
8:17
+0:12
25.2M
25.20 mi13:34:393:29:398:193:03
8:51
+0:34
Finish
26.22 mi13:42:463:37:468:198:07
7:58
-0:53

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

7:58 /mi

Average Pace

8:19 /mi

Slowest Pace

9:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:57:45

82% of race

Time at Steady Pace

40:01

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:18 /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 mi10:29:4624:467:5824:46
7:58
#13799
10K
6.21 mi10:54:4449:448:0024:58
8:02
#14411
15K
9.32 mi11:20:001:15:008:0325:16
8:08
#14713
20K
12.43 mi11:45:321:40:328:0525:32
8:13
#14782
Half
13.11 mi11:51:391:46:398:086:07
8:58
#15141
25K
15.53 mi12:13:362:08:368:1721:57
9:03
#15879
30K
18.64 mi12:39:432:34:438:1826:07
8:24
#15472
20M
20.00 mi12:51:032:46:038:1811:20
8:20
#15249
21M
21.00 mi12:59:572:54:578:208:54
8:54
#15088
35K
21.75 mi13:06:013:01:018:196:04
8:07
#15008
23M
23.00 mi13:16:263:11:268:1910:25
8:19
#14820
24M
24.00 mi13:24:313:19:318:198:05
8:05
#14672
40K
24.85 mi13:31:363:26:368:197:05
8:17
#14541
25.2M
25.20 mi13:34:393:29:398:193:03
8:51
#14490
Finish
26.22 mi13:42:463:37:468:198:07
7:58
#14376
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi137999880988015363(Top 58%)10454(Top 69%)10454(Top 198%)
10K6.21 mi3.10 mi14411-61210100-22010100-22015047(Top 57%)10321(Top 68%)10321(Top 195%)
15K9.32 mi3.11 mi14713-30210211-11110211-11115363(Top 58%)10454(Top 69%)10454(Top 198%)
20K12.43 mi3.11 mi14782-6910217-610217-615072(Top 57%)10296(Top 68%)10296(Top 195%)
Half13.11 mi0.68 mi15141-35910350-13310350-13320266(Top 76%)12411(Top 82%)12411(Top 235%)
25K15.53 mi2.42 mi15879-73810600-25010600-25019205(Top 72%)11934(Top 79%)11934(Top 226%)
30K18.64 mi3.11 mi15472+40710396+20410396+20413729(Top 52%)9546(Top 63%)9546(Top 181%)
20M20.00 mi1.36 mi15249+22310286+11010286+11012616(Top 47%)8958(Top 59%)8958(Top 169%)
21M21.00 mi1.00 mi15088+16110215+7110215+7112836(Top 48%)8964(Top 59%)8964(Top 170%)
35K21.75 mi0.75 mi15008+8010172+4310172+4312834(Top 48%)8921(Top 59%)8921(Top 169%)
23M23.00 mi1.25 mi14820+18810068+10410068+10412028(Top 45%)8488(Top 56%)8488(Top 161%)
24M24.00 mi1.00 mi14672+1489990+789990+7811814(Top 44%)8314(Top 55%)8314(Top 157%)
40K24.85 mi0.85 mi14541+1319922+689922+6811908(Top 45%)8287(Top 55%)8287(Top 157%)
25.2M25.20 mi0.35 mi14490+519891+319891+3111561(Top 43%)8075(Top 53%)8075(Top 153%)
Finish26.22 mi1.02 mi14376+1149830+619830+6111852(Top 45%)8214(Top 54%)8214(Top 155%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21stories
+97ft-345ft

Overall

15363

Males

10454

M18-39

10454

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

15047

Males

10321

M18-39

10321

10K→15K

6.2 - 9.3 mi

Top 58%
×3stories
+67ft-78ft

Overall

15363

Males

10454

M18-39

10454

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

15072

Males

10296

M18-39

10296

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

20266

Males

12411

M18-39

12411

Half→25K

13.1 - 15.5 mi

Top 72%
×4stories
+66ft-88ft

Overall

19205

Males

11934

M18-39

11934

25K→30K

15.5 - 18.6 mi

Top 52%
×9stories
+181ft-148ft

Overall

13729

Males

9546

M18-39

9546

30K→20M

18.6 - 20.0 mi

Top 47%
×5stories
+64ft-50ft

Overall

12616

Males

8958

M18-39

8958

20M→21M

20.0 - 21.0 mi

Top 48%
×8stories
+106ft-24ft

Overall

12836

Males

8964

M18-39

8964

21M→35K

21.0 - 21.8 mi

Top 48%
×7stories
+17ft-86ft

Overall

12834

Males

8921

M18-39

8921

35K→23M

21.8 - 23.0 mi

Top 45%
×5stories
+23ft-63ft

Overall

12028

Males

8488

M18-39

8488

23M→24M

23.0 - 24.0 mi

Top 44%
×6stories
+12ft-82ft

Overall

11814

Males

8314

M18-39

8314

24M→40K

24.0 - 24.9 mi

Top 45%
×1story
+6ft-20ft

Overall

11908

Males

8287

M18-39

8287

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

11561

Males

8075

M18-39

8075

25.2M→Finish

25.2 - 26.2 mi

Top 45%
×2stories
+22ft-21ft

Overall

11852

Males

8214

M18-39

8214

Passing Analysis

Category:
Athletes Passed
1989
Passed By
2566
Net Change
-577
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13799
5K → 10K87699-612#13799#14411
10K → 15K104406-302#14411#14713
15K → 20K163232-69#14713#14782
20K → Half3362-359#14782#15141
Half → 25K23761-738#15141#15879
25K → 30K43831+407#15879#15472
30K → 20M2307+223#15472#15249
20M → 21M17716+161#15249#15088
21M → 35K9010+80#15088#15008
35K → 23M19810+188#15008#14820
23M → 24M1546+148#14820#14672
24M → 40K1365+131#14672#14541
40K → 25.2M565+51#14541#14490
25.2M → Finish13016+114#14490#14376
TOTALS19892566-577
📊

Passing Visuals

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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing