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BOSTON MARATHON 2023

Mark Anderson

Bib: 12168•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 27%
Gender (Male)
#0 / 15176
Top 41%
Masters (Masters Men)
#0 / 9891
Top 27%
Division (M45-49)
#0 / 2252
Top 36%
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
7:10/mi
22:15
↑ 97↓ 3451.5%
10K· 6.21 mi
6:58/mi
43:55
↑ 79↓ 1380.4%
15K· 9.32 mi
7:03/mi
1:05:48
↑ 67↓ 78
20K· 12.43 mi
7:13/mi
1:28:14
↑ 106↓ 860.1%
Half· 13.11 mi
7:08/mi
1:33:06
↑ 19↓ 370.5%
25K· 15.53 mi
7:09/mi
1:50:25
↑ 66↓ 880.2%
30K· 18.64 mi
7:23/mi
2:13:20
↑ 181↓ 1480.2%
20M
7:27/mi
2:23:27
↑ 64↓ 500.2%
21M
8:04/mi
2:31:31
↑ 106↓ 241.6%
35K· 21.75 mi
7:21/mi
2:37:01
↑ 17↓ 861.7%
23M
7:47/mi
2:46:46
↑ 23↓ 630.6%
24M
8:06/mi
2:54:52
↓ 821.3%
40K· 24.85 mi
8:04/mi
3:01:46
↓ 200.3%
25.2M
9:49/mi
3:05:09
↑ 13↓ 160.2%
Finish· 26.22 mi
7:51/mi
3:13:09
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:06
Pace7:06 /mi
2nd Half
Distance13.11 mi
Time1:40:03
Pace7:38 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1522:157:1022:15
7:10
-
10K
6.21 mi11:13:5543:557:0421:40
6:58
-0:12
15K
9.32 mi11:35:481:05:487:0421:53
7:03
+0:05
20K
12.43 mi11:58:141:28:147:0622:26
7:13
+0:10
Half
13.11 mi12:03:061:33:067:064:52
7:08
-0:05
25K
15.53 mi12:20:251:50:257:0617:19
7:09
+0:01
30K
18.64 mi12:43:202:13:207:0922:55
7:23
+0:14
20M
20.00 mi12:53:272:23:277:1010:07
7:27
+0:04
21M
21.00 mi13:01:312:31:317:138:04
8:04
+0:37
35K
21.75 mi13:07:012:37:017:135:30
7:21
-0:43
23M
23.00 mi13:16:462:46:467:159:45
7:47
+0:26
24M
24.00 mi13:24:522:54:527:178:06
8:06
+0:19
40K
24.85 mi13:31:463:01:467:196:54
8:04
-0:02
25.2M
25.20 mi13:35:093:05:097:213:23
9:49
+1:45
Finish
26.22 mi13:43:093:13:097:228:00
7:51
-1:58

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

6:58 /mi

Average Pace

7:22 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

21:40

11% of race

Time at Steady Pace

2:07:17

66% of race

Time at Slower Pace

44:12

23% of race

Average Pace: 7:22 /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 mi10:52:1522:157:1022:15
7:10
#7252
10K
6.21 mi11:13:5543:557:0421:40
6:58
#6900
15K
9.32 mi11:35:481:05:487:0421:53
7:03
#6838
20K
12.43 mi11:58:141:28:147:0622:26
7:13
#6938
Half
13.11 mi12:03:061:33:067:064:52
7:08
#6947
25K
15.53 mi12:20:251:50:257:0617:19
7:09
#6808
30K
18.64 mi12:43:202:13:207:0922:55
7:23
#6701
20M
20.00 mi12:53:272:23:277:1010:07
7:27
#6661
21M
21.00 mi13:01:312:31:317:138:04
8:04
#6675
35K
21.75 mi13:07:012:37:017:135:30
7:21
#6667
23M
23.00 mi13:16:462:46:467:159:45
7:47
#6702
24M
24.00 mi13:24:522:54:527:178:06
8:06
#6859
40K
24.85 mi13:31:463:01:467:196:54
8:04
#6947
25.2M
25.20 mi13:35:093:05:097:213:23
9:49
#7091
Finish
26.22 mi13:43:093:13:097:228:00
7:51
#7200
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi7252646164616828(Top 26%)6112(Top 40%)6112(Top 271%)
10K6.21 mi3.10 mi6900+3526191+2706191+2706648(Top 25%)5970(Top 39%)5970(Top 265%)
15K9.32 mi3.11 mi6838+626130+616130+616828(Top 26%)6112(Top 40%)6112(Top 271%)
20K12.43 mi3.11 mi6938-1006203-736203-737218(Top 27%)6361(Top 42%)6361(Top 282%)
Half13.11 mi0.68 mi6947-96208-56208-57351(Top 28%)6471(Top 43%)6471(Top 287%)
25K15.53 mi2.42 mi6808+1396091+1176091+1176349(Top 24%)5689(Top 37%)5689(Top 253%)
30K18.64 mi3.11 mi6701+1075991+1005991+1006466(Top 24%)5710(Top 38%)5710(Top 254%)
20M20.00 mi1.36 mi6661+405946+455946+456436(Top 24%)5605(Top 37%)5605(Top 249%)
21M21.00 mi1.00 mi6675-145941+55941+57757(Top 29%)6340(Top 42%)6340(Top 282%)
35K21.75 mi0.75 mi6667+85929+125929+127448(Top 28%)6152(Top 41%)6152(Top 273%)
23M23.00 mi1.25 mi6702-355947-185947-188299(Top 31%)6574(Top 43%)6574(Top 292%)
24M24.00 mi1.00 mi6859-1576037-906037-9011889(Top 45%)8330(Top 55%)8330(Top 370%)
40K24.85 mi0.85 mi6947-886079-426079-4210451(Top 39%)7563(Top 50%)7563(Top 336%)
25.2M25.20 mi0.35 mi7091-1446171-926171-9216482(Top 62%)10294(Top 68%)10294(Top 457%)
Finish26.22 mi1.02 mi7200-1096209-386209-3811012(Top 41%)7788(Top 51%)7788(Top 346%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

6828

Males

6112

M45-49

6112

5K→10K

3.1 - 6.2 mi

Top 25%
×5story building
+79ft-138ft

Overall

6648

Males

5970

M45-49

5970

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

6828

Males

6112

M45-49

6112

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7218

Males

6361

M45-49

6361

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

7351

Males

6471

M45-49

6471

Half→25K

13.1 - 15.5 mi

Top 24%
×4story building
+66ft-88ft

Overall

6349

Males

5689

M45-49

5689

25K→30K

15.5 - 18.6 mi

Top 24%
×9story building
+181ft-148ft

Overall

6466

Males

5710

M45-49

5710

30K→20M

18.6 - 20.0 mi

Top 24%
×5story building
+64ft-50ft

Overall

6436

Males

5605

M45-49

5605

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7757

Males

6340

M45-49

6340

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

7448

Males

6152

M45-49

6152

35K→23M

21.8 - 23.0 mi

Top 31%
×5story building
+23ft-63ft

Overall

8299

Males

6574

M45-49

6574

23M→24M

23.0 - 24.0 mi

Top 45%
×6story building
+12ft-82ft

Overall

11889

Males

8330

M45-49

8330

24M→40K

24.0 - 24.9 mi

Top 39%
×1story
+6ft-20ft

Overall

10451

Males

7563

M45-49

7563

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16482

Males

10294

M45-49

10294

25.2M→Finish

25.2 - 26.2 mi

Top 41%
×2story building
+22ft-21ft

Overall

11012

Males

7788

M45-49

7788

Passing Analysis

Category:
Athletes Passed
1323
Passed By
1271
Net Change
+52
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7252
5K → 10K42977+352#7252#6900
10K → 15K16098+62#6900#6838
15K → 20K68168-100#6838#6938
20K → Half1322-9#6938#6947
Half → 25K15718+139#6947#6808
25K → 30K16760+107#6808#6701
30K → 20M8141+40#6701#6661
20M → 21M5973-14#6661#6675
21M → 35K3628+8#6675#6667
35K → 23M6095-35#6667#6702
23M → 24M20177-157#6702#6859
24M → 40K26114-88#6859#6947
40K → 25.2M8152-144#6947#7091
25.2M → Finish39148-109#7091#7200
TOTALS13231271+52
📊

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