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BOSTON MARATHON 2023

Andrew Nagelin

Bib: 29801•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
10:19/mi
32:03
↑ 97↓ 3451.5%
10K· 6.21 mi
10:12/mi
1:03:43
↑ 79↓ 1380.4%
15K· 9.32 mi
10:13/mi
1:35:28
↑ 67↓ 78
20K· 12.43 mi
10:32/mi
2:08:10
↑ 106↓ 860.1%
Half· 13.11 mi
10:27/mi
2:15:18
↑ 19↓ 370.5%
25K· 15.53 mi
10:42/mi
2:41:15
↑ 66↓ 880.2%
30K· 18.64 mi
11:19/mi
3:16:24
↑ 181↓ 1480.2%
20M
11:34/mi
3:32:07
↑ 64↓ 500.2%
21M
13:24/mi
3:45:31
↑ 106↓ 241.6%
35K· 21.75 mi
10:56/mi
3:53:42
↑ 17↓ 861.7%
23M
11:37/mi
4:08:15
↑ 23↓ 630.6%
24M
10:44/mi
4:18:59
↓ 821.3%
40K· 24.85 mi
11:05/mi
4:28:28
↓ 200.3%
25.2M
11:27/mi
4:32:25
↑ 13↓ 160.2%
Finish· 26.22 mi
10:22/mi
4:42:59
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:15:18
Pace10:19 /mi
2nd Half
Distance13.11 mi
Time2:27:41
Pace11:16 /mi
📊Positive Split: 9.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1232:0310:1932:03
10:19
-
10K
6.21 mi12:24:521:03:4310:1531:40
10:12
-0:07
15K
9.32 mi12:56:371:35:2810:1531:45
10:13
+0:01
20K
12.43 mi13:29:192:08:1010:1932:42
10:32
+0:19
Half
13.11 mi13:36:272:15:1810:197:08
10:27
-0:05
25K
15.53 mi14:02:242:41:1510:2325:57
10:42
+0:15
30K
18.64 mi14:37:333:16:2410:3235:09
11:19
+0:37
20M
20.00 mi14:53:163:32:0710:3615:43
11:34
+0:15
21M
21.00 mi15:06:403:45:3110:4413:24
13:24
+1:50
35K
21.75 mi15:14:513:53:4210:458:11
10:56
-2:28
23M
23.00 mi15:29:244:08:1510:4814:33
11:37
+0:41
24M
24.00 mi15:40:084:18:5910:4710:44
10:44
-0:53
40K
24.85 mi15:49:374:28:2810:489:29
11:05
+0:21
25.2M
25.20 mi15:53:344:32:2510:493:57
11:27
+0:22
Finish
26.22 mi16:04:084:42:5910:4810:34
10:22
-1:05

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

10:12 /mi

Average Pace

10:48 /mi

Slowest Pace

13:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:35:28

34% of race

Time at Steady Pace

1:44:45

37% of race

Time at Slower Pace

1:22:46

29% of race

Average Pace: 10:48 /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 mi11:53:1232:0310:1932:03
10:19
#24253
10K
6.21 mi12:24:521:03:4310:1531:40
10:12
#24171
15K
9.32 mi12:56:371:35:2810:1531:45
10:13
#24100
20K
12.43 mi13:29:192:08:1010:1932:42
10:32
#24044
Half
13.11 mi13:36:272:15:1810:197:08
10:27
#24042
25K
15.53 mi14:02:242:41:1510:2325:57
10:42
#23926
30K
18.64 mi14:37:333:16:2410:3235:09
11:19
#23882
20M
20.00 mi14:53:163:32:0710:3615:43
11:34
#23862
21M
21.00 mi15:06:403:45:3110:4413:24
13:24
#23930
35K
21.75 mi15:14:513:53:4210:458:11
10:56
#23905
23M
23.00 mi15:29:244:08:1510:4814:33
11:37
#23906
24M
24.00 mi15:40:084:18:5910:4710:44
10:44
#23844
40K
24.85 mi15:49:374:28:2810:489:29
11:05
#23802
25.2M
25.20 mi15:53:344:32:2510:493:57
11:27
#23771
Finish
26.22 mi16:04:084:42:5910:4810:34
10:22
#23750
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi24253142181421823919(Top 90%)14043(Top 93%)14043(Top 988%)
10K6.21 mi3.10 mi24171+8214170+4814170+4824114(Top 91%)14142(Top 93%)14142(Top 995%)
15K9.32 mi3.11 mi24100+7114131+3914131+3923919(Top 90%)14043(Top 93%)14043(Top 988%)
20K12.43 mi3.11 mi24044+5614105+2614105+2623883(Top 90%)14026(Top 92%)14026(Top 986%)
Half13.11 mi0.68 mi24042+214102+314102+324112(Top 91%)14110(Top 93%)14110(Top 992%)
25K15.53 mi2.42 mi23926+11614045+5714045+5723519(Top 88%)13815(Top 91%)13815(Top 972%)
30K18.64 mi3.11 mi23882+4414011+3414011+3423601(Top 89%)13802(Top 91%)13802(Top 971%)
20M20.00 mi1.36 mi23862+2013990+2113990+2123616(Top 89%)13748(Top 91%)13748(Top 967%)
21M21.00 mi1.00 mi23930-6814010-2014010-2024487(Top 92%)14131(Top 93%)14131(Top 994%)
35K21.75 mi0.75 mi23905+2513988+2213988+2223193(Top 87%)13480(Top 89%)13480(Top 948%)
23M23.00 mi1.25 mi23906-113984+413984+423445(Top 88%)13601(Top 90%)13601(Top 956%)
24M24.00 mi1.00 mi23844+6213947+3713947+3722524(Top 85%)13129(Top 87%)13129(Top 923%)
40K24.85 mi0.85 mi23802+4213925+2213925+2222536(Top 85%)13104(Top 86%)13104(Top 922%)
25.2M25.20 mi0.35 mi23771+3113902+2313902+2321458(Top 81%)12607(Top 83%)12607(Top 887%)
Finish26.22 mi1.02 mi23750+2113889+1313889+1322724(Top 85%)13192(Top 87%)13192(Top 928%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

23919

Males

14043

M55-59

14043

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

24114

Males

14142

M55-59

14142

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

23919

Males

14043

M55-59

14043

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

23883

Males

14026

M55-59

14026

20K→Half

12.4 - 13.1 mi

Top 91%
×2story building
+19ft-37ft

Overall

24112

Males

14110

M55-59

14110

Half→25K

13.1 - 15.5 mi

Top 88%
×4story building
+66ft-88ft

Overall

23519

Males

13815

M55-59

13815

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

23601

Males

13802

M55-59

13802

30K→20M

18.6 - 20.0 mi

Top 89%
×5story building
+64ft-50ft

Overall

23616

Males

13748

M55-59

13748

20M→21M

20.0 - 21.0 mi

Top 92%
×8story building
+106ft-24ft

Overall

24487

Males

14131

M55-59

14131

21M→35K

21.0 - 21.8 mi

Top 87%
×7story building
+17ft-86ft

Overall

23193

Males

13480

M55-59

13480

35K→23M

21.8 - 23.0 mi

Top 88%
×5story building
+23ft-63ft

Overall

23445

Males

13601

M55-59

13601

23M→24M

23.0 - 24.0 mi

Top 85%
×6story building
+12ft-82ft

Overall

22524

Males

13129

M55-59

13129

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

22536

Males

13104

M55-59

13104

40K→25.2M

24.9 - 25.2 mi

Top 81%
×1story
+13ft-16ft

Overall

21458

Males

12607

M55-59

12607

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

22724

Males

13192

M55-59

13192

Passing Analysis

Category:
Athletes Passed
1189
Passed By
686
Net Change
+503
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24253
5K → 10K243161+82#24253#24171
10K → 15K16291+71#24171#24100
15K → 20K13781+56#24100#24044
20K → Half2119+2#24044#24042
Half → 25K14731+116#24042#23926
25K → 30K14197+44#23926#23882
30K → 20M5535+20#23882#23862
20M → 21M1987-68#23862#23930
21M → 35K3914+25#23930#23905
35K → 23M4142-1#23905#23906
23M → 24M664+62#23906#23844
24M → 40K497+42#23844#23802
40K → 25.2M332+31#23802#23771
25.2M → Finish3615+21#23771#23750
TOTALS1189686+503
📊

Passing Visuals

Category:
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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