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BOSTON MARATHON 2023

Mark Bakker

Bib: 7458•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 25%
Gender (Male)
#0 / 15176
Top 39%
Masters (Masters Men)
#0 / 9891
Top 25%
Division (M40-44)
#0 / 2241
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
7:05/mi
21:59
↑ 97↓ 3451.5%
10K· 6.21 mi
7:10/mi
44:14
↑ 79↓ 1380.4%
15K· 9.32 mi
7:10/mi
1:06:30
↑ 67↓ 78
20K· 12.43 mi
7:13/mi
1:28:55
↑ 106↓ 860.1%
Half· 13.11 mi
7:04/mi
1:33:44
↑ 19↓ 370.5%
25K· 15.53 mi
7:13/mi
1:51:15
↑ 66↓ 880.2%
30K· 18.64 mi
7:29/mi
2:14:30
↑ 181↓ 1480.2%
20M
7:33/mi
2:24:46
↑ 64↓ 500.2%
21M
7:59/mi
2:32:45
↑ 106↓ 241.6%
35K· 21.75 mi
7:20/mi
2:38:14
↑ 17↓ 861.7%
23M
7:31/mi
2:47:39
↑ 23↓ 630.6%
24M
7:13/mi
2:54:52
↓ 821.3%
40K· 24.85 mi
7:20/mi
3:01:08
↓ 200.3%
25.2M
7:58/mi
3:03:53
↑ 13↓ 160.2%
Finish· 26.22 mi
7:24/mi
3:11:25
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:44
Pace7:09 /mi
2nd Half
Distance13.11 mi
Time1:37:41
Pace7:27 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:27:3121:597:0521:59
7:05
-
10K
6.21 mi10:49:4644:147:0722:15
7:10
+0:05
15K
9.32 mi11:12:021:06:307:0822:16
7:10
0:00
20K
12.43 mi11:34:271:28:557:0922:25
7:13
+0:03
Half
13.11 mi11:39:161:33:447:094:49
7:04
-0:09
25K
15.53 mi11:56:471:51:157:1017:31
7:13
+0:09
30K
18.64 mi12:20:022:14:307:1323:15
7:29
+0:16
20M
20.00 mi12:30:182:24:467:1410:16
7:33
+0:04
21M
21.00 mi12:38:172:32:457:167:59
7:59
+0:26
35K
21.75 mi12:43:462:38:147:175:29
7:20
-0:39
23M
23.00 mi12:53:112:47:397:179:25
7:31
+0:11
24M
24.00 mi13:00:242:54:527:177:13
7:13
-0:18
40K
24.85 mi13:06:403:01:087:176:16
7:20
+0:07
25.2M
25.20 mi13:09:253:03:537:182:45
7:58
+0:38
Finish
26.22 mi13:16:573:11:257:187:32
7:24
-0:34

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

7:04 /mi

Average Pace

7:18 /mi

Slowest Pace

7:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:00:41

94% of race

Time at Steady Pace

10:44

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:18 /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 mi10:27:3121:597:0521:59
7:05
#6726
10K
6.21 mi10:49:4644:147:0722:15
7:10
#7233
15K
9.32 mi11:12:021:06:307:0822:16
7:10
#7324
20K
12.43 mi11:34:271:28:557:0922:25
7:13
#7246
Half
13.11 mi11:39:161:33:447:094:49
7:04
#7231
25K
15.53 mi11:56:471:51:157:1017:31
7:13
#7135
30K
18.64 mi12:20:022:14:307:1323:15
7:29
#7076
20M
20.00 mi12:30:182:24:467:1410:16
7:33
#7041
21M
21.00 mi12:38:172:32:457:167:59
7:59
#6998
35K
21.75 mi12:43:462:38:147:175:29
7:20
#6987
23M
23.00 mi12:53:112:47:397:179:25
7:31
#6919
24M
24.00 mi13:00:242:54:527:177:13
7:13
#6854
40K
24.85 mi13:06:403:01:087:176:16
7:20
#6765
25.2M
25.20 mi13:09:253:03:537:182:45
7:58
#6739
Finish
26.22 mi13:16:573:11:257:187:32
7:24
#6746
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi6726606760677566(Top 28%)6637(Top 44%)6637(Top 296%)
10K6.21 mi3.10 mi7233-5076429-3626429-3627837(Top 29%)6825(Top 45%)6825(Top 305%)
15K9.32 mi3.11 mi7324-916494-656494-657566(Top 28%)6637(Top 44%)6637(Top 296%)
20K12.43 mi3.11 mi7246+786427+676427+677184(Top 27%)6342(Top 42%)6342(Top 283%)
Half13.11 mi0.68 mi7231+156415+126415+126895(Top 26%)6152(Top 41%)6152(Top 275%)
25K15.53 mi2.42 mi7135+966331+846331+846809(Top 26%)6014(Top 40%)6014(Top 268%)
30K18.64 mi3.11 mi7076+596269+626269+627098(Top 27%)6133(Top 40%)6133(Top 274%)
20M20.00 mi1.36 mi7041+356235+346235+347153(Top 27%)6070(Top 40%)6070(Top 271%)
21M21.00 mi1.00 mi6998+436188+476188+477220(Top 27%)5998(Top 40%)5998(Top 268%)
35K21.75 mi0.75 mi6987+116175+136175+137291(Top 27%)6064(Top 40%)6064(Top 271%)
23M23.00 mi1.25 mi6919+686096+796096+796532(Top 25%)5528(Top 36%)5528(Top 247%)
24M24.00 mi1.00 mi6854+656032+646032+645825(Top 22%)4991(Top 33%)4991(Top 223%)
40K24.85 mi0.85 mi6765+895952+805952+805642(Top 21%)4789(Top 32%)4789(Top 214%)
25.2M25.20 mi0.35 mi6739+265927+255927+256311(Top 24%)5147(Top 34%)5147(Top 230%)
Finish26.22 mi1.02 mi6746-75917+105917+107713(Top 29%)5999(Top 40%)5999(Top 268%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

7566

Males

6637

M40-44

6637

5K→10K

3.1 - 6.2 mi

Top 29%
×5story building
+79ft-138ft

Overall

7837

Males

6825

M40-44

6825

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

7566

Males

6637

M40-44

6637

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7184

Males

6342

M40-44

6342

20K→Half

12.4 - 13.1 mi

Top 26%
×2story building
+19ft-37ft

Overall

6895

Males

6152

M40-44

6152

Half→25K

13.1 - 15.5 mi

Top 26%
×4story building
+66ft-88ft

Overall

6809

Males

6014

M40-44

6014

25K→30K

15.5 - 18.6 mi

Top 27%
×9story building
+181ft-148ft

Overall

7098

Males

6133

M40-44

6133

30K→20M

18.6 - 20.0 mi

Top 27%
×5story building
+64ft-50ft

Overall

7153

Males

6070

M40-44

6070

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7220

Males

5998

M40-44

5998

21M→35K

21.0 - 21.8 mi

Top 27%
×7story building
+17ft-86ft

Overall

7291

Males

6064

M40-44

6064

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

6532

Males

5528

M40-44

5528

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

5825

Males

4991

M40-44

4991

24M→40K

24.0 - 24.9 mi

Top 21%
×1story
+6ft-20ft

Overall

5642

Males

4789

M40-44

4789

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6311

Males

5147

M40-44

5147

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

7713

Males

5999

M40-44

5999

Passing Analysis

Category:
Athletes Passed
1181
Passed By
1201
Net Change
-20
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6726
5K → 10K47554-507#6726#7233
10K → 15K96187-91#7233#7324
15K → 20K14769+78#7324#7246
20K → Half227+15#7246#7231
Half → 25K13842+96#7231#7135
25K → 30K14889+59#7135#7076
30K → 20M7136+35#7076#7041
20M → 21M8239+43#7041#6998
21M → 35K4231+11#6998#6987
35K → 23M11042+68#6987#6919
23M → 24M8621+65#6919#6854
24M → 40K9910+89#6854#6765
40K → 25.2M3711+26#6765#6739
25.2M → Finish5663-7#6739#6746
TOTALS11811201-20
📊

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