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BOSTON MARATHON 2023

Cody Foster

Bib: 1148•M

TX

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 8%
Gender (Male)
#0 / 15176
Top 14%
Division (M18-39)
#0 / 5285
Top 31%
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
6:14/mi
19:23
↑ 97↓ 3451.5%
10K· 6.21 mi
6:17/mi
38:53
↑ 79↓ 1380.4%
15K· 9.32 mi
6:18/mi
58:28
↑ 67↓ 78
20K· 12.43 mi
6:20/mi
1:18:09
↑ 106↓ 860.1%
Half· 13.11 mi
6:21/mi
1:22:29
↑ 19↓ 370.5%
25K· 15.53 mi
6:46/mi
1:38:54
↑ 66↓ 880.2%
30K· 18.64 mi
6:36/mi
1:59:25
↑ 181↓ 1480.2%
20M
6:41/mi
2:08:30
↑ 64↓ 500.2%
21M
6:58/mi
2:15:28
↑ 106↓ 241.6%
35K· 21.75 mi
6:26/mi
2:20:17
↑ 17↓ 861.7%
23M
6:48/mi
2:28:48
↑ 23↓ 630.6%
24M
6:48/mi
2:35:36
↓ 821.3%
40K· 24.85 mi
7:23/mi
2:41:55
↓ 200.3%
25.2M
7:58/mi
2:44:40
↑ 13↓ 160.2%
Finish· 26.22 mi
7:25/mi
2:52:13
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:22:29
Pace6:18 /mi
2nd Half
Distance13.11 mi
Time1:29:44
Pace6:51 /mi
📊Positive Split: 8.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:4019:236:1419:23
6:14
-
10K
6.21 mi10:39:1038:536:1519:30
6:17
+0:03
15K
9.32 mi10:58:4558:286:1619:35
6:18
+0:01
20K
12.43 mi11:18:261:18:096:1719:41
6:20
+0:02
Half
13.11 mi11:22:461:22:296:184:20
6:21
+0:01
25K
15.53 mi11:39:111:38:546:2216:25
6:46
+0:25
30K
18.64 mi11:59:421:59:256:2420:31
6:36
-0:10
20M
20.00 mi12:08:472:08:306:259:05
6:41
+0:05
21M
21.00 mi12:15:452:15:286:276:58
6:58
+0:17
35K
21.75 mi12:20:342:20:176:274:49
6:26
-0:32
23M
23.00 mi12:29:052:28:486:288:31
6:48
+0:22
24M
24.00 mi12:35:532:35:366:296:48
6:48
0:00
40K
24.85 mi12:42:122:41:556:316:19
7:23
+0:35
25.2M
25.20 mi12:44:572:44:406:322:45
7:58
+0:35
Finish
26.22 mi12:52:302:52:136:347:33
7:25
-0:33

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

6:14 /mi

Average Pace

6:34 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:18

51% of race

Time at Steady Pace

1:01:20

36% of race

Time at Slower Pace

23:35

14% of race

Average Pace: 6:34 /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 mi10:19:4019:236:1419:23
6:14
#1243
10K
6.21 mi10:39:1038:536:1519:30
6:17
#1403
15K
9.32 mi10:58:4558:286:1619:35
6:18
#1464
20K
12.43 mi11:18:261:18:096:1719:41
6:20
#1465
Half
13.11 mi11:22:461:22:296:184:20
6:21
#1495
25K
15.53 mi11:39:111:38:546:2216:25
6:46
#1767
30K
18.64 mi11:59:421:59:256:2420:31
6:36
#1759
20M
20.00 mi12:08:472:08:306:259:05
6:41
#1770
21M
21.00 mi12:15:452:15:286:276:58
6:58
#1770
35K
21.75 mi12:20:342:20:176:274:49
6:26
#1776
23M
23.00 mi12:29:052:28:486:288:31
6:48
#1801
24M
24.00 mi12:35:532:35:366:296:48
6:48
#1854
40K
24.85 mi12:42:122:41:556:316:19
7:23
#1958
25.2M
25.20 mi12:44:572:44:406:322:45
7:58
#2004
Finish
26.22 mi12:52:302:52:136:347:33
7:25
#2141
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1243117911791671(Top 6%)1597(Top 11%)1597(Top 30%)
10K6.21 mi3.10 mi1403-1601337-1581337-1581670(Top 6%)1596(Top 11%)1596(Top 30%)
15K9.32 mi3.11 mi1464-611397-601397-601671(Top 6%)1597(Top 11%)1597(Top 30%)
20K12.43 mi3.11 mi1465-11398-11398-11554(Top 6%)1485(Top 10%)1485(Top 28%)
Half13.11 mi0.68 mi1495-301427-291427-292007(Top 8%)1930(Top 13%)1930(Top 37%)
25K15.53 mi2.42 mi1767-2721691-2641691-2643873(Top 15%)3641(Top 24%)3641(Top 69%)
30K18.64 mi3.11 mi1759+81683+81683+81972(Top 7%)1885(Top 12%)1885(Top 36%)
20M20.00 mi1.36 mi1770-111692-91692-92198(Top 8%)2090(Top 14%)2090(Top 40%)
21M21.00 mi1.00 mi17701695-31695-31993(Top 7%)1888(Top 12%)1888(Top 36%)
35K21.75 mi0.75 mi1776-61701-61701-62120(Top 8%)2013(Top 13%)2013(Top 38%)
23M23.00 mi1.25 mi1801-251722-211722-212651(Top 10%)2484(Top 16%)2484(Top 47%)
24M24.00 mi1.00 mi1854-531774-521774-523614(Top 14%)3313(Top 22%)3313(Top 63%)
40K24.85 mi0.85 mi1958-1041874-1001874-1005947(Top 22%)4971(Top 33%)4971(Top 94%)
25.2M25.20 mi0.35 mi2004-461920-461920-466218(Top 23%)5054(Top 33%)5054(Top 96%)
Finish26.22 mi1.02 mi2141-1372054-1342054-1347804(Top 29%)6039(Top 40%)6039(Top 114%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21story building
+97ft-345ft

Overall

1671

Males

1597

M18-39

1597

5K→10K

3.1 - 6.2 mi

Top 6%
×5story building
+79ft-138ft

Overall

1670

Males

1596

M18-39

1596

10K→15K

6.2 - 9.3 mi

Top 6%
×3story building
+67ft-78ft

Overall

1671

Males

1597

M18-39

1597

15K→20K

9.3 - 12.4 mi

Top 6%
×5story building
+106ft-86ft

Overall

1554

Males

1485

M18-39

1485

20K→Half

12.4 - 13.1 mi

Top 8%
×2story building
+19ft-37ft

Overall

2007

Males

1930

M18-39

1930

Half→25K

13.1 - 15.5 mi

Top 15%
×4story building
+66ft-88ft

Overall

3873

Males

3641

M18-39

3641

25K→30K

15.5 - 18.6 mi

Top 7%
×9story building
+181ft-148ft

Overall

1972

Males

1885

M18-39

1885

30K→20M

18.6 - 20.0 mi

Top 8%
×5story building
+64ft-50ft

Overall

2198

Males

2090

M18-39

2090

20M→21M

20.0 - 21.0 mi

Top 7%
×8story building
+106ft-24ft

Overall

1993

Males

1888

M18-39

1888

21M→35K

21.0 - 21.8 mi

Top 8%
×7story building
+17ft-86ft

Overall

2120

Males

2013

M18-39

2013

35K→23M

21.8 - 23.0 mi

Top 10%
×5story building
+23ft-63ft

Overall

2651

Males

2484

M18-39

2484

23M→24M

23.0 - 24.0 mi

Top 14%
×6story building
+12ft-82ft

Overall

3614

Males

3313

M18-39

3313

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5947

Males

4971

M18-39

4971

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6218

Males

5054

M18-39

5054

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7804

Males

6039

M18-39

6039

Passing Analysis

Category:
Athletes Passed
292
Passed By
1190
Net Change
-898
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1243
5K → 10K29189-160#1243#1403
10K → 15K2889-61#1403#1464
15K → 20K4849-1#1464#1465
20K → Half232-30#1465#1495
Half → 25K3275-272#1495#1767
25K → 30K6254+8#1767#1759
30K → 20M2536-11#1759#1770
20M → 21M29290#1770#1770
21M → 35K1723-6#1770#1776
35K → 23M2449-25#1776#1801
23M → 24M1063-53#1801#1854
24M → 40K7111-104#1854#1958
40K → 25.2M147-46#1958#2004
25.2M → Finish7144-137#2004#2141
TOTALS2921190-898
📊

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