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BOSTON MARATHON 2023

Andrew Spangenberg

Bib: 3621•M

MD

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 4%
Gender (Male)
#0 / 15176
Top 7%
Division (M18-39)
#0 / 5285
Top 17%
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
6:23/mi
19:50
↑ 97↓ 3451.5%
10K· 6.21 mi
6:07/mi
38:50
↑ 79↓ 1380.4%
15K· 9.32 mi
6:07/mi
57:50
↑ 67↓ 78
20K· 12.43 mi
6:07/mi
1:16:51
↑ 106↓ 860.1%
Half· 13.11 mi
5:59/mi
1:20:56
↑ 19↓ 370.5%
25K· 15.53 mi
6:02/mi
1:35:34
↑ 66↓ 880.2%
30K· 18.64 mi
6:15/mi
1:54:59
↑ 181↓ 1480.2%
20M
6:26/mi
2:03:44
↑ 64↓ 500.2%
21M
6:57/mi
2:10:41
↑ 106↓ 241.6%
35K· 21.75 mi
6:22/mi
2:15:27
↑ 17↓ 861.7%
23M
6:36/mi
2:23:43
↑ 23↓ 630.6%
24M
6:25/mi
2:30:08
↓ 821.3%
40K· 24.85 mi
6:53/mi
2:36:01
↓ 200.3%
25.2M
7:32/mi
2:38:37
↑ 13↓ 160.2%
Finish· 26.22 mi
6:37/mi
2:45:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:20:56
Pace6:10 /mi
2nd Half
Distance13.11 mi
Time1:24:26
Pace6:26 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1319:506:2319:50
6:23
-
10K
6.21 mi10:40:1338:506:1519:00
6:07
-0:16
15K
9.32 mi10:59:1357:506:1219:00
6:07
0:00
20K
12.43 mi11:18:141:16:516:1119:01
6:07
0:00
Half
13.11 mi11:22:191:20:566:104:05
5:59
-0:08
25K
15.53 mi11:36:571:35:346:0914:38
6:02
+0:03
30K
18.64 mi11:56:221:54:596:1019:25
6:15
+0:13
20M
20.00 mi12:05:072:03:446:118:45
6:26
+0:11
21M
21.00 mi12:12:042:10:416:136:57
6:57
+0:31
35K
21.75 mi12:16:502:15:276:144:46
6:22
-0:35
23M
23.00 mi12:25:062:23:436:158:16
6:36
+0:14
24M
24.00 mi12:31:312:30:086:156:25
6:25
-0:11
40K
24.85 mi12:37:242:36:016:175:53
6:53
+0:28
25.2M
25.20 mi12:40:002:38:376:182:36
7:32
+0:39
Finish
26.22 mi12:46:452:45:226:196:45
6:37
-0:55

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

5:59 /mi

Average Pace

6:19 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:15:44

46% of race

Time at Steady Pace

59:11

36% of race

Time at Slower Pace

30:27

18% of race

Average Pace: 6:18 /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 mi10:21:1319:506:2319:50
6:23
#1747
10K
6.21 mi10:40:1338:506:1519:00
6:07
#1373
15K
9.32 mi10:59:1357:506:1219:00
6:07
#1207
20K
12.43 mi11:18:141:16:516:1119:01
6:07
#1115
Half
13.11 mi11:22:191:20:566:104:05
5:59
#1094
25K
15.53 mi11:36:571:35:346:0914:38
6:02
#998
30K
18.64 mi11:56:221:54:596:1019:25
6:15
#933
20M
20.00 mi12:05:072:03:446:118:45
6:26
#945
21M
21.00 mi12:12:042:10:416:136:57
6:57
#963
35K
21.75 mi12:16:502:15:276:144:46
6:22
#975
23M
23.00 mi12:25:062:23:436:158:16
6:36
#989
24M
24.00 mi12:31:312:30:086:156:25
6:25
#1001
40K
24.85 mi12:37:242:36:016:175:53
6:53
#1057
25.2M
25.20 mi12:40:002:38:376:182:36
7:32
#1082
Finish
26.22 mi12:46:452:45:226:196:45
6:37
#1121
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1747166516651007(Top 4%)958(Top 6%)958(Top 18%)
10K6.21 mi3.10 mi1373+3741307+3581307+3581091(Top 4%)1035(Top 7%)1035(Top 20%)
15K9.32 mi3.11 mi1207+1661145+1621145+1621007(Top 4%)958(Top 6%)958(Top 18%)
20K12.43 mi3.11 mi1115+921060+851060+85835(Top 3%)791(Top 5%)791(Top 15%)
Half13.11 mi0.68 mi1094+211039+211039+21738(Top 3%)697(Top 5%)697(Top 13%)
25K15.53 mi2.42 mi998+96948+91948+91604(Top 2%)564(Top 4%)564(Top 11%)
30K18.64 mi3.11 mi933+65885+63885+63792(Top 3%)753(Top 5%)753(Top 14%)
20M20.00 mi1.36 mi945-12897-12897-121238(Top 5%)1179(Top 8%)1179(Top 22%)
21M21.00 mi1.00 mi963-18916-19916-191910(Top 7%)1810(Top 12%)1810(Top 34%)
35K21.75 mi0.75 mi975-12928-12928-121812(Top 7%)1718(Top 11%)1718(Top 33%)
23M23.00 mi1.25 mi989-14942-14942-141760(Top 7%)1669(Top 11%)1669(Top 32%)
24M24.00 mi1.00 mi1001-12952-10952-101718(Top 6%)1619(Top 11%)1619(Top 31%)
40K24.85 mi0.85 mi1057-561005-531005-533175(Top 12%)2905(Top 19%)2905(Top 55%)
25.2M25.20 mi0.35 mi1082-251030-251030-253974(Top 15%)3516(Top 23%)3516(Top 67%)
Finish26.22 mi1.02 mi1121-391068-381068-383063(Top 12%)2758(Top 18%)2758(Top 52%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21story building
+97ft-345ft

Overall

1007

Males

958

M18-39

958

5K→10K

3.1 - 6.2 mi

Top 4%
×5story building
+79ft-138ft

Overall

1091

Males

1035

M18-39

1035

10K→15K

6.2 - 9.3 mi

Top 4%
×3story building
+67ft-78ft

Overall

1007

Males

958

M18-39

958

15K→20K

9.3 - 12.4 mi

Top 3%
×5story building
+106ft-86ft

Overall

835

Males

791

M18-39

791

20K→Half

12.4 - 13.1 mi

Top 3%
×2story building
+19ft-37ft

Overall

738

Males

697

M18-39

697

Half→25K

13.1 - 15.5 mi

Top 2%
×4story building
+66ft-88ft

Overall

604

Males

564

M18-39

564

25K→30K

15.5 - 18.6 mi

Top 3%
×9story building
+181ft-148ft

Overall

792

Males

753

M18-39

753

30K→20M

18.6 - 20.0 mi

Top 5%
×5story building
+64ft-50ft

Overall

1238

Males

1179

M18-39

1179

20M→21M

20.0 - 21.0 mi

Top 7%
×8story building
+106ft-24ft

Overall

1910

Males

1810

M18-39

1810

21M→35K

21.0 - 21.8 mi

Top 7%
×7story building
+17ft-86ft

Overall

1812

Males

1718

M18-39

1718

35K→23M

21.8 - 23.0 mi

Top 7%
×5story building
+23ft-63ft

Overall

1760

Males

1669

M18-39

1669

23M→24M

23.0 - 24.0 mi

Top 6%
×6story building
+12ft-82ft

Overall

1718

Males

1619

M18-39

1619

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3175

Males

2905

M18-39

2905

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

3974

Males

3516

M18-39

3516

25.2M→Finish

25.2 - 26.2 mi

Top 12%
×2story building
+22ft-21ft

Overall

3063

Males

2758

M18-39

2758

Passing Analysis

Category:
Athletes Passed
894
Passed By
268
Net Change
+626
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1747
5K → 10K3762+374#1747#1373
10K → 15K1715+166#1373#1207
15K → 20K931+92#1207#1115
20K → Half210+21#1115#1094
Half → 25K960+96#1094#998
25K → 30K727+65#998#933
30K → 20M1123-12#933#945
20M → 21M1028-18#945#963
21M → 35K618-12#963#975
35K → 23M1125-14#975#989
23M → 24M1224-12#989#1001
24M → 40K763-56#1001#1057
40K → 25.2M025-25#1057#1082
25.2M → Finish847-39#1082#1121
TOTALS894268+626
📊

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