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BOSTON MARATHON 2023

Mark Webb

Bib: 8603•M

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 24%
Gender (Male)
#0 / 15176
Top 38%
Masters (Masters Men)
#0 / 9891
Top 24%
Division (M45-49)
#0 / 2252
Top 30%
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
7:19/mi
22:43
↑ 97↓ 3451.5%
10K· 6.21 mi
7:09/mi
44:55
↑ 79↓ 1380.4%
15K· 9.32 mi
6:59/mi
1:06:38
↑ 67↓ 78
20K· 12.43 mi
7:01/mi
1:28:27
↑ 106↓ 860.1%
Half· 13.11 mi
6:59/mi
1:33:13
↑ 19↓ 370.5%
25K· 15.53 mi
7:08/mi
1:50:31
↑ 66↓ 880.2%
30K· 18.64 mi
7:20/mi
2:13:19
↑ 181↓ 1480.2%
20M
7:22/mi
2:23:20
↑ 64↓ 500.2%
21M
7:40/mi
2:31:00
↑ 106↓ 241.6%
35K· 21.75 mi
7:17/mi
2:36:27
↑ 17↓ 861.7%
23M
7:30/mi
2:45:51
↑ 23↓ 630.6%
24M
7:32/mi
2:53:23
↓ 821.3%
40K· 24.85 mi
7:37/mi
2:59:54
↓ 200.3%
25.2M
8:07/mi
3:02:42
↑ 13↓ 160.2%
Finish· 26.22 mi
7:11/mi
3:10:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:13
Pace7:07 /mi
2nd Half
Distance13.11 mi
Time1:36:48
Pace7:23 /mi
📊Positive Split: 3.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:0222:437:1922:43
7:19
-
10K
6.21 mi11:10:1444:557:1422:12
7:09
-0:10
15K
9.32 mi11:31:571:06:387:0921:43
6:59
-0:10
20K
12.43 mi11:53:461:28:277:0721:49
7:01
+0:02
Half
13.11 mi11:58:321:33:137:074:46
6:59
-0:02
25K
15.53 mi12:15:501:50:317:0717:18
7:08
+0:09
30K
18.64 mi12:38:382:13:197:0922:48
7:20
+0:12
20M
20.00 mi12:48:392:23:207:1010:01
7:22
+0:02
21M
21.00 mi12:56:192:31:007:117:40
7:40
+0:18
35K
21.75 mi13:01:462:36:277:125:27
7:17
-0:23
23M
23.00 mi13:11:102:45:517:139:24
7:30
+0:13
24M
24.00 mi13:18:422:53:237:137:32
7:32
+0:02
40K
24.85 mi13:25:132:59:547:146:31
7:37
+0:05
25.2M
25.20 mi13:28:013:02:427:152:48
8:07
+0:30
Finish
26.22 mi13:35:203:10:017:157:19
7:11
-0:56

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

6:59 /mi

Average Pace

7:15 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:07:13

99% of race

Time at Steady Pace

2:48

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:15 /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 mi10:48:0222:437:1922:43
7:19
#8159
10K
6.21 mi11:10:1444:557:1422:12
7:09
#7946
15K
9.32 mi11:31:571:06:387:0921:43
6:59
#7406
20K
12.43 mi11:53:461:28:277:0721:49
7:01
#7036
Half
13.11 mi11:58:321:33:137:074:46
6:59
#6993
25K
15.53 mi12:15:501:50:317:0717:18
7:08
#6857
30K
18.64 mi12:38:382:13:197:0922:48
7:20
#6691
20M
20.00 mi12:48:392:23:207:1010:01
7:22
#6627
21M
21.00 mi12:56:192:31:007:117:40
7:40
#6524
35K
21.75 mi13:01:462:36:277:125:27
7:17
#6510
23M
23.00 mi13:11:102:45:517:139:24
7:30
#6476
24M
24.00 mi13:18:422:53:237:137:32
7:32
#6487
40K
24.85 mi13:25:132:59:547:146:31
7:37
#6464
25.2M
25.20 mi13:28:013:02:427:152:48
8:07
#6441
Finish
26.22 mi13:35:203:10:017:157:19
7:11
#6429
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi8159707970796484(Top 24%)5843(Top 39%)5843(Top 259%)
10K6.21 mi3.10 mi7946+2136937+1426937+1427714(Top 29%)6739(Top 44%)6739(Top 299%)
15K9.32 mi3.11 mi7406+5406559+3786559+3786484(Top 24%)5843(Top 39%)5843(Top 259%)
20K12.43 mi3.11 mi7036+3706274+2856274+2856116(Top 23%)5561(Top 37%)5561(Top 247%)
Half13.11 mi0.68 mi6993+436243+316243+316455(Top 24%)5831(Top 38%)5831(Top 259%)
25K15.53 mi2.42 mi6857+1366134+1096134+1096306(Top 24%)5654(Top 37%)5654(Top 251%)
30K18.64 mi3.11 mi6691+1665983+1515983+1516248(Top 23%)5550(Top 37%)5550(Top 246%)
20M20.00 mi1.36 mi6627+645919+645919+646035(Top 23%)5320(Top 35%)5320(Top 236%)
21M21.00 mi1.00 mi6524+1035831+885831+885449(Top 20%)4802(Top 32%)4802(Top 213%)
35K21.75 mi0.75 mi6510+145812+195812+196999(Top 26%)5884(Top 39%)5884(Top 261%)
23M23.00 mi1.25 mi6476+345779+335779+336445(Top 24%)5467(Top 36%)5467(Top 243%)
24M24.00 mi1.00 mi6487-115773+65773+67892(Top 30%)6240(Top 41%)6240(Top 277%)
40K24.85 mi0.85 mi6464+235745+285745+287421(Top 28%)5881(Top 39%)5881(Top 261%)
25.2M25.20 mi0.35 mi6441+235722+235722+237130(Top 27%)5644(Top 37%)5644(Top 251%)
Finish26.22 mi1.02 mi6429+125702+205702+206272(Top 24%)5111(Top 34%)5111(Top 227%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 24%
×21story building
+97ft-345ft

Overall

6484

Males

5843

M45-49

5843

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

7714

Males

6739

M45-49

6739

10K→15K

6.2 - 9.3 mi

Top 24%
×3story building
+67ft-78ft

Overall

6484

Males

5843

M45-49

5843

15K→20K

9.3 - 12.4 mi

Top 23%
×5story building
+106ft-86ft

Overall

6116

Males

5561

M45-49

5561

20K→Half

12.4 - 13.1 mi

Top 24%
×2story building
+19ft-37ft

Overall

6455

Males

5831

M45-49

5831

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6306

Males

5654

M45-49

5654

25K→30K

15.5 - 18.6 mi

Top 23%
×9story building
+181ft-148ft

Overall

6248

Males

5550

M45-49

5550

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6035

Males

5320

M45-49

5320

20M→21M

20.0 - 21.0 mi

Top 20%
×8story building
+106ft-24ft

Overall

5449

Males

4802

M45-49

4802

21M→35K

21.0 - 21.8 mi

Top 26%
×7story building
+17ft-86ft

Overall

6999

Males

5884

M45-49

5884

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6445

Males

5467

M45-49

5467

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

7892

Males

6240

M45-49

6240

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

7421

Males

5881

M45-49

5881

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7130

Males

5644

M45-49

5644

25.2M→Finish

25.2 - 26.2 mi

Top 24%
×2story building
+22ft-21ft

Overall

6272

Males

5111

M45-49

5111

Passing Analysis

Category:
Athletes Passed
2221
Passed By
491
Net Change
+1730
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8159
5K → 10K357144+213#8159#7946
10K → 15K55010+540#7946#7406
15K → 20K3711+370#7406#7036
20K → Half474+43#7036#6993
Half → 25K15317+136#6993#6857
25K → 30K20741+166#6857#6691
30K → 20M9228+64#6691#6627
20M → 21M11613+103#6627#6524
21M → 35K5036+14#6524#6510
35K → 23M8248+34#6510#6476
23M → 24M5263-11#6476#6487
24M → 40K5734+23#6487#6464
40K → 25.2M3613+23#6464#6441
25.2M → Finish5139+12#6441#6429
TOTALS2221491+1730
📊

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