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BOSTON MARATHON 2023

Brian Sterling

Bib: 14365•M

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 31%
Gender (Male)
#0 / 15176
Top 46%
Masters (Masters Men)
#0 / 9891
Top 33%
Division (M55-59)
#0 / 1422
Top 15%
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
7:42/mi
23:55
↑ 97↓ 3451.5%
10K· 6.21 mi
7:28/mi
47:07
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:10:20
↑ 67↓ 78
20K· 12.43 mi
7:34/mi
1:33:51
↑ 106↓ 860.1%
Half· 13.11 mi
7:29/mi
1:38:57
↑ 19↓ 370.5%
25K· 15.53 mi
8:01/mi
1:58:24
↑ 66↓ 880.2%
30K· 18.64 mi
7:40/mi
2:22:13
↑ 181↓ 1480.2%
20M
7:21/mi
2:32:12
↑ 64↓ 500.2%
21M
7:37/mi
2:39:49
↑ 106↓ 241.6%
35K· 21.75 mi
7:02/mi
2:45:05
↑ 17↓ 861.7%
23M
7:10/mi
2:54:03
↑ 23↓ 630.6%
24M
7:10/mi
3:01:13
↓ 821.3%
40K· 24.85 mi
7:15/mi
3:07:25
↓ 200.3%
25.2M
7:44/mi
3:10:05
↑ 13↓ 160.2%
Finish· 26.22 mi
6:53/mi
3:17:06
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:38:57
Pace7:33 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:38:09
Pace7:29 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:1723:557:4223:55
7:42
-
10K
6.21 mi11:16:2947:077:3523:12
7:28
-0:14
15K
9.32 mi11:39:421:10:207:3323:13
7:28
0:00
20K
12.43 mi12:03:131:33:517:3323:31
7:34
+0:06
Half
13.11 mi12:08:191:38:577:335:06
7:29
-0:05
25K
15.53 mi12:27:461:58:247:3719:27
8:01
+0:32
30K
18.64 mi12:51:352:22:137:3823:49
7:40
-0:21
20M
20.00 mi13:01:342:32:127:379:59
7:21
-0:19
21M
21.00 mi13:09:112:39:497:377:37
7:37
+0:16
35K
21.75 mi13:14:272:45:057:355:16
7:02
-0:35
23M
23.00 mi13:23:252:54:037:348:58
7:10
+0:08
24M
24.00 mi13:30:353:01:137:337:10
7:10
0:00
40K
24.85 mi13:36:473:07:257:326:12
7:15
+0:05
25.2M
25.20 mi13:39:273:10:057:332:40
7:44
+0:29
Finish
26.22 mi13:46:283:17:067:317:01
6:53
-0:51

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

6:53 /mi

Average Pace

7:31 /mi

Slowest Pace

8:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:38

61% of race

Time at Steady Pace

1:17:28

39% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:31 /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 mi10:53:1723:557:4223:55
7:42
#11403
10K
6.21 mi11:16:2947:077:3523:12
7:28
#10761
15K
9.32 mi11:39:421:10:207:3323:13
7:28
#10455
20K
12.43 mi12:03:131:33:517:3323:31
7:34
#10282
Half
13.11 mi12:08:191:38:577:335:06
7:29
#10259
25K
15.53 mi12:27:461:58:247:3719:27
8:01
#10665
30K
18.64 mi12:51:352:22:137:3823:49
7:40
#10206
20M
20.00 mi13:01:342:32:127:379:59
7:21
#9816
21M
21.00 mi13:09:112:39:497:377:37
7:37
#9507
35K
21.75 mi13:14:272:45:057:355:16
7:02
#9321
23M
23.00 mi13:23:252:54:037:348:58
7:10
#8975
24M
24.00 mi13:30:353:01:137:337:10
7:10
#8795
40K
24.85 mi13:36:473:07:257:326:12
7:15
#8626
25.2M
25.20 mi13:39:273:10:057:332:40
7:44
#8555
Finish
26.22 mi13:46:283:17:067:317:01
6:53
#8327
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi11403884388439937(Top 37%)8109(Top 53%)8109(Top 570%)
10K6.21 mi3.10 mi10761+6428537+3068537+30610187(Top 38%)8264(Top 54%)8264(Top 581%)
15K9.32 mi3.11 mi10455+3068397+1408397+1409937(Top 37%)8109(Top 53%)8109(Top 570%)
20K12.43 mi3.11 mi10282+1738301+968301+969831(Top 37%)7979(Top 53%)7979(Top 561%)
Half13.11 mi0.68 mi10259+238289+128289+129937(Top 37%)8047(Top 53%)8047(Top 566%)
25K15.53 mi2.42 mi10665-4068468-1798468-17912897(Top 48%)9303(Top 61%)9303(Top 654%)
30K18.64 mi3.11 mi10206+4598195+2738195+2738404(Top 32%)6926(Top 46%)6926(Top 487%)
20M20.00 mi1.36 mi9816+3907968+2277968+2275911(Top 22%)5230(Top 34%)5230(Top 368%)
21M21.00 mi1.00 mi9507+3097761+2077761+2075201(Top 20%)4626(Top 30%)4626(Top 325%)
35K21.75 mi0.75 mi9321+1867626+1357626+1355580(Top 21%)4943(Top 33%)4943(Top 348%)
23M23.00 mi1.25 mi8975+3467404+2227404+2224618(Top 17%)4177(Top 28%)4177(Top 294%)
24M24.00 mi1.00 mi8795+1807270+1347270+1345571(Top 21%)4833(Top 32%)4833(Top 340%)
40K24.85 mi0.85 mi8626+1697157+1137157+1135169(Top 19%)4465(Top 29%)4465(Top 314%)
25.2M25.20 mi0.35 mi8555+717107+507107+505066(Top 19%)4343(Top 29%)4343(Top 305%)
Finish26.22 mi1.02 mi8327+2286938+1696938+1694567(Top 17%)3975(Top 26%)3975(Top 280%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9937

Males

8109

M55-59

8109

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10187

Males

8264

M55-59

8264

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9937

Males

8109

M55-59

8109

15K→20K

9.3 - 12.4 mi

Top 37%
×5story building
+106ft-86ft

Overall

9831

Males

7979

M55-59

7979

20K→Half

12.4 - 13.1 mi

Top 37%
×2story building
+19ft-37ft

Overall

9937

Males

8047

M55-59

8047

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

12897

Males

9303

M55-59

9303

25K→30K

15.5 - 18.6 mi

Top 32%
×9story building
+181ft-148ft

Overall

8404

Males

6926

M55-59

6926

30K→20M

18.6 - 20.0 mi

Top 22%
×5story building
+64ft-50ft

Overall

5911

Males

5230

M55-59

5230

20M→21M

20.0 - 21.0 mi

Top 20%
×8story building
+106ft-24ft

Overall

5201

Males

4626

M55-59

4626

21M→35K

21.0 - 21.8 mi

Top 21%
×7story building
+17ft-86ft

Overall

5580

Males

4943

M55-59

4943

35K→23M

21.8 - 23.0 mi

Top 17%
×5story building
+23ft-63ft

Overall

4618

Males

4177

M55-59

4177

23M→24M

23.0 - 24.0 mi

Top 21%
×6story building
+12ft-82ft

Overall

5571

Males

4833

M55-59

4833

24M→40K

24.0 - 24.9 mi

Top 19%
×1story
+6ft-20ft

Overall

5169

Males

4465

M55-59

4465

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5066

Males

4343

M55-59

4343

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4567

Males

3975

M55-59

3975

Passing Analysis

Category:
Athletes Passed
3798*
Passed By
722
Net Change
+3076
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11403
5K → 10K73694+642#11403#10761
10K → 15K38074+306#10761#10455
15K → 20K239*66+173#10455#10282
20K → Half4320+23#10282#10259
Half → 25K39445-406#10259#10665
25K → 30K469*10+459#10665#10206
30K → 20M390*0+390#10206#9816
20M → 21M3101+309#9816#9507
21M → 35K1871+186#9507#9321
35K → 23M3460+346#9321#8975
23M → 24M1822+180#8975#8795
24M → 40K1767+169#8795#8626
40K → 25.2M721+71#8626#8555
25.2M → Finish2291+228#8555#8327
TOTALS3798*722+3076

* 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