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BOSTON MARATHON 2023

Jeremy Anderson

Bib: 11372•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 35%
Gender (Male)
#0 / 15176
Top 49%
Masters (Masters Men)
#0 / 9891
Top 38%
Division (M45-49)
#0 / 2252
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
7:47/mi
24:12
↑ 97↓ 3451.5%
10K· 6.21 mi
7:32/mi
47:36
↑ 79↓ 1380.4%
15K· 9.32 mi
7:38/mi
1:11:18
↑ 67↓ 78
20K· 12.43 mi
7:46/mi
1:35:26
↑ 106↓ 860.1%
Half· 13.11 mi
7:36/mi
1:40:37
↑ 19↓ 370.5%
25K· 15.53 mi
7:41/mi
1:59:15
↑ 66↓ 880.2%
30K· 18.64 mi
7:53/mi
2:23:44
↑ 181↓ 1480.2%
20M
7:38/mi
2:34:07
↑ 64↓ 500.2%
21M
7:47/mi
2:41:54
↑ 106↓ 241.6%
35K· 21.75 mi
7:21/mi
2:47:24
↑ 17↓ 861.7%
23M
7:39/mi
2:56:59
↑ 23↓ 630.6%
24M
7:33/mi
3:04:32
↓ 821.3%
40K· 24.85 mi
7:23/mi
3:10:51
↓ 200.3%
25.2M
7:21/mi
3:13:23
↑ 13↓ 160.2%
Finish· 26.22 mi
6:44/mi
3:20:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:40:37
Pace7:40 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:39:38
Pace7:36 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0724:127:4724:12
7:47
-
10K
6.21 mi11:14:3147:367:4023:24
7:32
-0:15
15K
9.32 mi11:38:131:11:187:3923:42
7:38
+0:06
20K
12.43 mi12:02:211:35:267:4124:08
7:46
+0:08
Half
13.11 mi12:07:321:40:377:405:11
7:36
-0:10
25K
15.53 mi12:26:101:59:157:4118:38
7:41
+0:05
30K
18.64 mi12:50:392:23:447:4324:29
7:53
+0:12
20M
20.00 mi13:01:022:34:077:4210:23
7:38
-0:15
21M
21.00 mi13:08:492:41:547:437:47
7:47
+0:09
35K
21.75 mi13:14:192:47:247:425:30
7:21
-0:26
23M
23.00 mi13:23:542:56:597:429:35
7:39
+0:18
24M
24.00 mi13:31:273:04:327:417:33
7:33
-0:06
40K
24.85 mi13:37:463:10:517:416:19
7:23
-0:10
25.2M
25.20 mi13:40:183:13:237:402:32
7:21
-0:02
Finish
26.22 mi13:47:103:20:157:396:52
6:44
-0:37

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

6:44 /mi

Average Pace

7:39 /mi

Slowest Pace

7:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

21:13

11% of race

Time at Steady Pace

2:59:02

89% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:38 /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 mi10:51:0724:127:4724:12
7:47
#12235
10K
6.21 mi11:14:3147:367:4023:24
7:32
#11430
15K
9.32 mi11:38:131:11:187:3923:42
7:38
#11352
20K
12.43 mi12:02:211:35:267:4124:08
7:46
#11336
Half
13.11 mi12:07:321:40:377:405:11
7:36
#11319
25K
15.53 mi12:26:101:59:157:4118:38
7:41
#11111
30K
18.64 mi12:50:392:23:447:4324:29
7:53
#10856
20M
20.00 mi13:01:022:34:077:4210:23
7:38
#10599
21M
21.00 mi13:08:492:41:547:437:47
7:47
#10301
35K
21.75 mi13:14:192:47:247:425:30
7:21
#10168
23M
23.00 mi13:23:542:56:597:429:35
7:39
#9958
24M
24.00 mi13:31:273:04:327:417:33
7:33
#9840
40K
24.85 mi13:37:463:10:517:416:19
7:23
#9655
25.2M
25.20 mi13:40:183:13:237:402:32
7:21
#9508
Finish
26.22 mi13:47:103:20:157:396:52
6:44
#9261
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi122359216921611227(Top 42%)8734(Top 58%)8734(Top 388%)
10K6.21 mi3.10 mi11430+8058844+3728844+37210699(Top 40%)8527(Top 56%)8527(Top 379%)
15K9.32 mi3.11 mi11352+788816+288816+2811227(Top 42%)8734(Top 58%)8734(Top 388%)
20K12.43 mi3.11 mi11336+168799+178799+1711443(Top 43%)8765(Top 58%)8765(Top 389%)
Half13.11 mi0.68 mi11319+178788+118788+1110922(Top 41%)8561(Top 56%)8561(Top 380%)
25K15.53 mi2.42 mi11111+2088676+1128676+11210170(Top 38%)8078(Top 53%)8078(Top 359%)
30K18.64 mi3.11 mi10856+2558511+1658511+1659970(Top 37%)7808(Top 51%)7808(Top 347%)
20M20.00 mi1.36 mi10599+2578359+1528359+1527765(Top 29%)6450(Top 43%)6450(Top 286%)
21M21.00 mi1.00 mi10301+2988186+1738186+1736098(Top 23%)5267(Top 35%)5267(Top 234%)
35K21.75 mi0.75 mi10168+1338113+738113+737488(Top 28%)6192(Top 41%)6192(Top 275%)
23M23.00 mi1.25 mi9958+2107978+1357978+1357456(Top 28%)6097(Top 40%)6097(Top 271%)
24M24.00 mi1.00 mi9840+1187874+1047874+1048035(Top 30%)6343(Top 42%)6343(Top 282%)
40K24.85 mi0.85 mi9655+1857755+1197755+1196008(Top 23%)5032(Top 33%)5032(Top 223%)
25.2M25.20 mi0.35 mi9508+1477653+1027653+1023242(Top 12%)2965(Top 20%)2965(Top 132%)
Finish26.22 mi1.02 mi9261+2477487+1667487+1663753(Top 14%)3345(Top 22%)3345(Top 149%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11227

Males

8734

M45-49

8734

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

10699

Males

8527

M45-49

8527

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11227

Males

8734

M45-49

8734

15K→20K

9.3 - 12.4 mi

Top 43%
×5story building
+106ft-86ft

Overall

11443

Males

8765

M45-49

8765

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10922

Males

8561

M45-49

8561

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10170

Males

8078

M45-49

8078

25K→30K

15.5 - 18.6 mi

Top 37%
×9story building
+181ft-148ft

Overall

9970

Males

7808

M45-49

7808

30K→20M

18.6 - 20.0 mi

Top 29%
×5story building
+64ft-50ft

Overall

7765

Males

6450

M45-49

6450

20M→21M

20.0 - 21.0 mi

Top 23%
×8story building
+106ft-24ft

Overall

6098

Males

5267

M45-49

5267

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

7488

Males

6192

M45-49

6192

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7456

Males

6097

M45-49

6097

23M→24M

23.0 - 24.0 mi

Top 30%
×6story building
+12ft-82ft

Overall

8035

Males

6343

M45-49

6343

24M→40K

24.0 - 24.9 mi

Top 23%
×1story
+6ft-20ft

Overall

6008

Males

5032

M45-49

5032

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3242

Males

2965

M45-49

2965

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2story building
+22ft-21ft

Overall

3753

Males

3345

M45-49

3345

Passing Analysis

Category:
Athletes Passed
3493*
Passed By
519
Net Change
+2974
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12235
5K → 10K87873+805#12235#11430
10K → 15K225147+78#11430#11352
15K → 20K167151+16#11352#11336
20K → Half3720+17#11336#11319
Half → 25K24335+208#11319#11111
25K → 30K31661+255#11111#10856
30K → 20M259*2+257#10856#10599
20M → 21M3002+298#10599#10301
21M → 35K1330+133#10301#10168
35K → 23M216*6+210#10168#9958
23M → 24M13315+118#9958#9840
24M → 40K189*4+185#9840#9655
40K → 25.2M1470+147#9655#9508
25.2M → Finish2503+247#9508#9261
TOTALS3493*519+2974

* 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