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BOSTON MARATHON 2023

Christopher Marshall

Bib: 19994•M

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 36%
Gender (Male)
#0 / 15176
Division (M18-39)
#0 / 5285
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
7:37/mi
23:39
↑ 97↓ 3451.5%
10K· 6.21 mi
7:29/mi
46:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:10:04
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:33:46
↑ 106↓ 860.1%
Half· 13.11 mi
7:39/mi
1:38:59
↑ 19↓ 370.5%
25K· 15.53 mi
7:45/mi
1:57:47
↑ 66↓ 880.2%
30K· 18.64 mi
7:47/mi
2:21:57
↑ 181↓ 1480.2%
20M
7:49/mi
2:32:35
↑ 64↓ 500.2%
21M
8:07/mi
2:40:42
↑ 106↓ 241.6%
35K· 21.75 mi
7:49/mi
2:46:33
↑ 17↓ 861.7%
23M
7:58/mi
2:56:31
↑ 23↓ 630.6%
24M
7:37/mi
3:04:08
↓ 821.3%
40K· 24.85 mi
7:56/mi
3:10:55
↓ 200.3%
25.2M
8:22/mi
3:13:48
↑ 13↓ 160.2%
Finish· 26.22 mi
7:32/mi
3:21:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:59
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:42:30
Pace7:49 /mi
📊Positive Split: 3.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:15:0823:397:3723:39
7:37
-
10K
6.21 mi11:38:2346:547:3323:15
7:29
-0:08
15K
9.32 mi12:01:331:10:047:3123:10
7:27
-0:02
20K
12.43 mi12:25:151:33:467:3323:42
7:38
+0:11
Half
13.11 mi12:30:281:38:597:335:13
7:39
+0:01
25K
15.53 mi12:49:161:57:477:3518:48
7:45
+0:06
30K
18.64 mi13:13:262:21:577:3724:10
7:47
+0:02
20M
20.00 mi13:24:042:32:357:3810:38
7:49
+0:02
21M
21.00 mi13:32:112:40:427:398:07
8:07
+0:18
35K
21.75 mi13:38:022:46:337:395:51
7:49
-0:18
23M
23.00 mi13:48:002:56:317:409:58
7:58
+0:09
24M
24.00 mi13:55:373:04:087:407:37
7:37
-0:21
40K
24.85 mi14:02:243:10:557:416:47
7:56
+0:19
25.2M
25.20 mi14:05:173:13:487:412:53
8:22
+0:26
Finish
26.22 mi14:12:583:21:297:417:41
7:32
-0:50

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

7:27 /mi

Average Pace

7:41 /mi

Slowest Pace

8:22 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:18:36

99% of race

Time at Steady Pace

2:53

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:41 /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 mi11:15:0823:397:3723:39
7:37
#10632
10K
6.21 mi11:38:2346:547:3323:15
7:29
#10445
15K
9.32 mi12:01:331:10:047:3123:10
7:27
#10211
20K
12.43 mi12:25:151:33:467:3323:42
7:38
#10234
Half
13.11 mi12:30:281:38:597:335:13
7:39
#10292
25K
15.53 mi12:49:161:57:477:3518:48
7:45
#10325
30K
18.64 mi13:13:262:21:577:3724:10
7:47
#10089
20M
20.00 mi13:24:042:32:357:3810:38
7:49
#9972
21M
21.00 mi13:32:112:40:427:398:07
8:07
#9822
35K
21.75 mi13:38:022:46:337:395:51
7:49
#9857
23M
23.00 mi13:48:002:56:317:409:58
7:58
#9798
24M
24.00 mi13:55:373:04:087:407:37
7:37
#9702
40K
24.85 mi14:02:243:10:557:416:47
7:56
#9677
25.2M
25.20 mi14:05:173:13:487:412:53
8:22
#9639
Finish
26.22 mi14:12:583:21:297:417:41
7:32
#9583
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi10632846584659820(Top 37%)8049(Top 53%)8049(Top 152%)
10K6.21 mi3.10 mi10445+1878386+798386+7910305(Top 39%)8329(Top 55%)8329(Top 158%)
15K9.32 mi3.11 mi10211+2348280+1068280+1069820(Top 37%)8049(Top 53%)8049(Top 152%)
20K12.43 mi3.11 mi10234-238279+18279+110292(Top 39%)8230(Top 54%)8230(Top 156%)
Half13.11 mi0.68 mi10292-588308-298308-2911329(Top 43%)8762(Top 58%)8762(Top 166%)
25K15.53 mi2.42 mi10325-338301+78301+710710(Top 40%)8346(Top 55%)8346(Top 158%)
30K18.64 mi3.11 mi10089+2368143+1588143+1589193(Top 35%)7386(Top 49%)7386(Top 140%)
20M20.00 mi1.36 mi9972+1178053+908053+909053(Top 34%)7228(Top 48%)7228(Top 137%)
21M21.00 mi1.00 mi9822+1507947+1067947+1068112(Top 30%)6548(Top 43%)6548(Top 124%)
35K21.75 mi0.75 mi9857-357947794710760(Top 40%)7983(Top 53%)7983(Top 151%)
23M23.00 mi1.25 mi9798+597876+717876+719461(Top 36%)7207(Top 47%)7207(Top 136%)
24M24.00 mi1.00 mi9702+967799+777799+778504(Top 32%)6616(Top 44%)6616(Top 125%)
40K24.85 mi0.85 mi9677+257762+377762+379567(Top 36%)7114(Top 47%)7114(Top 135%)
25.2M25.20 mi0.35 mi9639+387721+417721+418639(Top 32%)6540(Top 43%)6540(Top 124%)
Finish26.22 mi1.02 mi9583+567662+597662+598824(Top 33%)6652(Top 44%)6652(Top 126%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9820

Males

8049

M18-39

8049

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10305

Males

8329

M18-39

8329

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9820

Males

8049

M18-39

8049

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10292

Males

8230

M18-39

8230

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

11329

Males

8762

M18-39

8762

Half→25K

13.1 - 15.5 mi

Top 40%
×4story building
+66ft-88ft

Overall

10710

Males

8346

M18-39

8346

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9193

Males

7386

M18-39

7386

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9053

Males

7228

M18-39

7228

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8112

Males

6548

M18-39

6548

21M→35K

21.0 - 21.8 mi

Top 40%
×7story building
+17ft-86ft

Overall

10760

Males

7983

M18-39

7983

35K→23M

21.8 - 23.0 mi

Top 36%
×5story building
+23ft-63ft

Overall

9461

Males

7207

M18-39

7207

23M→24M

23.0 - 24.0 mi

Top 32%
×6story building
+12ft-82ft

Overall

8504

Males

6616

M18-39

6616

24M→40K

24.0 - 24.9 mi

Top 36%
×1story
+6ft-20ft

Overall

9567

Males

7114

M18-39

7114

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1story
+13ft-16ft

Overall

8639

Males

6540

M18-39

6540

25.2M→Finish

25.2 - 26.2 mi

Top 33%
×2story building
+22ft-21ft

Overall

8824

Males

6652

M18-39

6652

Passing Analysis

Category:
Athletes Passed
2098*
Passed By
1049
Net Change
+1049
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10632
5K → 10K394*207+187#10632#10445
10K → 15K32692+234#10445#10211
15K → 20K148*171-23#10211#10234
20K → Half1068-58#10234#10292
Half → 25K129162-33#10292#10325
25K → 30K286*50+236#10325#10089
30K → 20M158*41+117#10089#9972
20M → 21M16515+150#9972#9822
21M → 35K3570-35#9822#9857
35K → 23M11253+59#9857#9798
23M → 24M11014+96#9798#9702
24M → 40K73*48+25#9702#9677
40K → 25.2M5921+38#9677#9639
25.2M → Finish9337+56#9639#9583
TOTALS2098*1049+1049

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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