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BOSTON MARATHON 2023

Adam Smith

Bib: 11803•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 36%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 39%
Division (M50-54)
#0 / 2052
Top 37%
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
7:46/mi
24:07
↑ 97↓ 3451.5%
10K· 6.21 mi
7:33/mi
47:33
↑ 79↓ 1380.4%
15K· 9.32 mi
7:35/mi
1:11:07
↑ 67↓ 78
20K· 12.43 mi
7:39/mi
1:34:52
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:40:02
↑ 19↓ 370.5%
25K· 15.53 mi
7:37/mi
1:58:30
↑ 66↓ 880.2%
30K· 18.64 mi
7:45/mi
2:22:35
↑ 181↓ 1480.2%
20M
7:50/mi
2:33:14
↑ 64↓ 500.2%
21M
8:13/mi
2:41:27
↑ 106↓ 241.6%
35K· 21.75 mi
7:30/mi
2:47:04
↑ 17↓ 861.7%
23M
7:40/mi
2:56:40
↑ 23↓ 630.6%
24M
7:22/mi
3:04:02
↓ 821.3%
40K· 24.85 mi
7:42/mi
3:10:37
↓ 200.3%
25.2M
8:16/mi
3:13:28
↑ 13↓ 160.2%
Finish· 26.22 mi
7:30/mi
3:21:07
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:02
Pace7:38 /mi
2nd Half
Distance13.11 mi
Time1:41:05
Pace7:43 /mi
📊Positive Split: 1.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:0124:077:4624:07
7:46
-
10K
6.21 mi11:15:2747:337:3923:26
7:33
-0:13
15K
9.32 mi11:39:011:11:077:3823:34
7:35
+0:02
20K
12.43 mi12:02:461:34:527:3823:45
7:39
+0:04
Half
13.11 mi12:07:561:40:027:385:10
7:34
-0:05
25K
15.53 mi12:26:241:58:307:3818:28
7:37
+0:03
30K
18.64 mi12:50:292:22:357:3924:05
7:45
+0:08
20M
20.00 mi13:01:082:33:147:4010:39
7:50
+0:05
21M
21.00 mi13:09:212:41:277:418:13
8:13
+0:23
35K
21.75 mi13:14:582:47:047:415:37
7:30
-0:43
23M
23.00 mi13:24:342:56:407:419:36
7:40
+0:10
24M
24.00 mi13:31:563:04:027:407:22
7:22
-0:18
40K
24.85 mi13:38:313:10:377:406:35
7:42
+0:20
25.2M
25.20 mi13:41:223:13:287:412:51
8:16
+0:34
Finish
26.22 mi13:49:013:21:077:417:39
7:30
-0:46

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

7:22 /mi

Average Pace

7:41 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:10:03

94% of race

Time at Steady Pace

11:04

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:40 /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 mi10:52:0124:077:4624:07
7:46
#12011
10K
6.21 mi11:15:2747:337:3923:26
7:33
#11357
15K
9.32 mi11:39:011:11:077:3823:34
7:35
#11186
20K
12.43 mi12:02:461:34:527:3823:45
7:39
#10986
Half
13.11 mi12:07:561:40:027:385:10
7:34
#10974
25K
15.53 mi12:26:241:58:307:3818:28
7:37
#10716
30K
18.64 mi12:50:292:22:357:3924:05
7:45
#10353
20M
20.00 mi13:01:082:33:147:4010:39
7:50
#10250
21M
21.00 mi13:09:212:41:277:418:13
8:13
#10124
35K
21.75 mi13:14:582:47:047:415:37
7:30
#10039
23M
23.00 mi13:24:342:56:407:419:36
7:40
#9851
24M
24.00 mi13:31:563:04:027:407:22
7:22
#9672
40K
24.85 mi13:38:313:10:377:406:35
7:42
#9575
25.2M
25.20 mi13:41:223:13:287:412:51
8:16
#9530
Finish
26.22 mi13:49:013:21:077:417:39
7:30
#9478
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi120119115911510866(Top 41%)8582(Top 57%)8582(Top 418%)
10K6.21 mi3.10 mi11357+6548817+2988817+29810805(Top 41%)8583(Top 57%)8583(Top 418%)
15K9.32 mi3.11 mi11186+1718739+788739+7810866(Top 41%)8582(Top 57%)8582(Top 418%)
20K12.43 mi3.11 mi10986+2008645+948645+9410444(Top 39%)8308(Top 55%)8308(Top 405%)
Half13.11 mi0.68 mi10974+128638+78638+710736(Top 40%)8462(Top 56%)8462(Top 412%)
25K15.53 mi2.42 mi10716+2588493+1458493+1459658(Top 36%)7793(Top 51%)7793(Top 380%)
30K18.64 mi3.11 mi10353+3638261+2328261+2328997(Top 34%)7281(Top 48%)7281(Top 355%)
20M20.00 mi1.36 mi10250+1038189+728189+729134(Top 34%)7272(Top 48%)7272(Top 354%)
21M21.00 mi1.00 mi10124+1268106+838106+838689(Top 33%)6894(Top 45%)6894(Top 336%)
35K21.75 mi0.75 mi10039+858034+728034+728583(Top 32%)6857(Top 45%)6857(Top 334%)
23M23.00 mi1.25 mi9851+1887911+1237911+1237547(Top 28%)6156(Top 41%)6156(Top 300%)
24M24.00 mi1.00 mi9672+1797786+1257786+1256841(Top 26%)5630(Top 37%)5630(Top 274%)
40K24.85 mi0.85 mi9575+977705+817705+817974(Top 30%)6237(Top 41%)6237(Top 304%)
25.2M25.20 mi0.35 mi9530+457667+387667+388058(Top 30%)6218(Top 41%)6218(Top 303%)
Finish26.22 mi1.02 mi9478+527607+607607+608587(Top 32%)6517(Top 43%)6517(Top 318%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 41%
×21story building
+97ft-345ft

Overall

10866

Males

8582

M50-54

8582

5K→10K

3.1 - 6.2 mi

Top 41%
×5story building
+79ft-138ft

Overall

10805

Males

8583

M50-54

8583

10K→15K

6.2 - 9.3 mi

Top 41%
×3story building
+67ft-78ft

Overall

10866

Males

8582

M50-54

8582

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10444

Males

8308

M50-54

8308

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

10736

Males

8462

M50-54

8462

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9658

Males

7793

M50-54

7793

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

8997

Males

7281

M50-54

7281

30K→20M

18.6 - 20.0 mi

Top 34%
×5story building
+64ft-50ft

Overall

9134

Males

7272

M50-54

7272

20M→21M

20.0 - 21.0 mi

Top 33%
×8story building
+106ft-24ft

Overall

8689

Males

6894

M50-54

6894

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

8583

Males

6857

M50-54

6857

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7547

Males

6156

M50-54

6156

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

6841

Males

5630

M50-54

5630

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

7974

Males

6237

M50-54

6237

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8058

Males

6218

M50-54

6218

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

8587

Males

6517

M50-54

6517

Passing Analysis

Category:
Athletes Passed
3003*
Passed By
470
Net Change
+2533
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12011
5K → 10K74995+654#12011#11357
10K → 15K276105+171#11357#11186
15K → 20K26565+200#11186#10986
20K → Half3018+12#10986#10974
Half → 25K27416+258#10974#10716
25K → 30K39229+363#10716#10353
30K → 20M134*31+103#10353#10250
20M → 21M15024+126#10250#10124
21M → 35K9914+85#10124#10039
35K → 23M196*8+188#10039#9851
23M → 24M1801+179#9851#9672
24M → 40K107*10+97#9672#9575
40K → 25.2M5712+45#9575#9530
25.2M → Finish9442+52#9530#9478
TOTALS3003*470+2533

* 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