Boston Marathon logo
BOSTON MARATHON 2023

Adam Muffett

Bib: 12020•M

DC

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 32%
Gender (Male)
#0 / 15176
Top 47%
Masters (Masters Men)
#0 / 9891
Top 35%
Division (M45-49)
#0 / 2252
Top 48%
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
7:43/mi
23:57
↑ 97↓ 3451.5%
10K· 6.21 mi
7:28/mi
47:09
↑ 79↓ 1380.4%
15K· 9.32 mi
7:22/mi
1:10:03
↑ 67↓ 78
20K· 12.43 mi
7:29/mi
1:33:17
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:38:26
↑ 19↓ 370.5%
25K· 15.53 mi
7:33/mi
1:56:45
↑ 66↓ 880.2%
30K· 18.64 mi
7:32/mi
2:20:10
↑ 181↓ 1480.2%
20M
7:41/mi
2:30:37
↑ 64↓ 500.2%
21M
7:54/mi
2:38:31
↑ 106↓ 241.6%
35K· 21.75 mi
7:33/mi
2:44:10
↑ 17↓ 861.7%
23M
7:39/mi
2:53:45
↑ 23↓ 630.6%
24M
7:36/mi
3:01:21
↓ 821.3%
40K· 24.85 mi
7:42/mi
3:07:56
↓ 200.3%
25.2M
8:13/mi
3:10:46
↑ 13↓ 160.2%
Finish· 26.22 mi
7:15/mi
3:18:09
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:26
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:39:43
Pace7:36 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1323:577:4323:57
7:43
-
10K
6.21 mi11:17:2547:097:3523:12
7:28
-0:15
15K
9.32 mi11:40:191:10:037:3122:54
7:22
-0:06
20K
12.43 mi12:03:331:33:177:3023:14
7:29
+0:07
Half
13.11 mi12:08:421:38:267:315:09
7:33
+0:04
25K
15.53 mi12:27:011:56:457:3118:19
7:33
0:00
30K
18.64 mi12:50:262:20:107:3123:25
7:32
-0:01
20M
20.00 mi13:00:532:30:377:3210:27
7:41
+0:09
21M
21.00 mi13:08:472:38:317:337:54
7:54
+0:13
35K
21.75 mi13:14:262:44:107:335:39
7:33
-0:21
23M
23.00 mi13:24:012:53:457:339:35
7:39
+0:06
24M
24.00 mi13:31:373:01:217:337:36
7:36
-0:03
40K
24.85 mi13:38:123:07:567:346:35
7:42
+0:06
25.2M
25.20 mi13:41:023:10:467:342:50
8:13
+0:31
Finish
26.22 mi13:48:253:18:097:347:23
7:15
-0:58

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

7:15 /mi

Average Pace

7:34 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:19

99% of race

Time at Steady Pace

2:50

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /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 mi10:54:1323:577:4323:57
7:43
#11509
10K
6.21 mi11:17:2547:097:3523:12
7:28
#10802
15K
9.32 mi11:40:191:10:037:3122:54
7:22
#10193
20K
12.43 mi12:03:331:33:177:3023:14
7:29
#9878
Half
13.11 mi12:08:421:38:267:315:09
7:33
#9919
25K
15.53 mi12:27:011:56:457:3118:19
7:33
#9779
30K
18.64 mi12:50:262:20:107:3123:25
7:32
#9303
20M
20.00 mi13:00:532:30:377:3210:27
7:41
#9200
21M
21.00 mi13:08:472:38:317:337:54
7:54
#9017
35K
21.75 mi13:14:262:44:107:335:39
7:33
#9002
23M
23.00 mi13:24:012:53:457:339:35
7:39
#8884
24M
24.00 mi13:31:373:01:217:337:36
7:36
#8822
40K
24.85 mi13:38:123:07:567:346:35
7:42
#8787
25.2M
25.20 mi13:41:023:10:467:342:50
8:13
#8753
Finish
26.22 mi13:48:253:18:097:347:23
7:15
#8645
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi11509889488949088(Top 34%)7591(Top 50%)7591(Top 337%)
10K6.21 mi3.10 mi10802+7078559+3358559+33510189(Top 38%)8266(Top 54%)8266(Top 367%)
15K9.32 mi3.11 mi10193+6098272+2878272+2879088(Top 34%)7591(Top 50%)7591(Top 337%)
20K12.43 mi3.11 mi9878+3158078+1948078+1949135(Top 34%)7578(Top 50%)7578(Top 337%)
Half13.11 mi0.68 mi9919-418101-238101-2310515(Top 39%)8337(Top 55%)8337(Top 370%)
25K15.53 mi2.42 mi9779+1408011+908011+909171(Top 34%)7533(Top 50%)7533(Top 335%)
30K18.64 mi3.11 mi9303+4767683+3287683+3287475(Top 28%)6373(Top 42%)6373(Top 283%)
20M20.00 mi1.36 mi9200+1037600+837600+838094(Top 30%)6654(Top 44%)6654(Top 295%)
21M21.00 mi1.00 mi9017+1837468+1327468+1326737(Top 25%)5706(Top 38%)5706(Top 253%)
35K21.75 mi0.75 mi9002+157448+207448+208882(Top 33%)7006(Top 46%)7006(Top 311%)
23M23.00 mi1.25 mi8884+1187352+967352+967449(Top 28%)6090(Top 40%)6090(Top 270%)
24M24.00 mi1.00 mi8822+627284+687284+688380(Top 31%)6542(Top 43%)6542(Top 290%)
40K24.85 mi0.85 mi8787+357243+417243+417969(Top 30%)6232(Top 41%)6232(Top 277%)
25.2M25.20 mi0.35 mi8753+347211+327211+327750(Top 29%)6026(Top 40%)6026(Top 268%)
Finish26.22 mi1.02 mi8645+1087132+797132+796729(Top 25%)5402(Top 36%)5402(Top 240%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 34%
×21story building
+97ft-345ft

Overall

9088

Males

7591

M45-49

7591

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10189

Males

8266

M45-49

8266

10K→15K

6.2 - 9.3 mi

Top 34%
×3story building
+67ft-78ft

Overall

9088

Males

7591

M45-49

7591

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

9135

Males

7578

M45-49

7578

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

10515

Males

8337

M45-49

8337

Half→25K

13.1 - 15.5 mi

Top 34%
×4story building
+66ft-88ft

Overall

9171

Males

7533

M45-49

7533

25K→30K

15.5 - 18.6 mi

Top 28%
×9story building
+181ft-148ft

Overall

7475

Males

6373

M45-49

6373

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

8094

Males

6654

M45-49

6654

20M→21M

20.0 - 21.0 mi

Top 25%
×8story building
+106ft-24ft

Overall

6737

Males

5706

M45-49

5706

21M→35K

21.0 - 21.8 mi

Top 33%
×7story building
+17ft-86ft

Overall

8882

Males

7006

M45-49

7006

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7449

Males

6090

M45-49

6090

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8380

Males

6542

M45-49

6542

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

7969

Males

6232

M45-49

6232

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7750

Males

6026

M45-49

6026

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2story building
+22ft-21ft

Overall

6729

Males

5402

M45-49

5402

Passing Analysis

Category:
Athletes Passed
3304*
Passed By
440
Net Change
+2864
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11509
5K → 10K78477+707#11509#10802
10K → 15K63223+609#10802#10193
15K → 20K355*40+315#10193#9878
20K → Half1455-41#9878#9919
Half → 25K18848+140#9919#9779
25K → 30K487*11+476#9779#9303
30K → 20M13027+103#9303#9200
20M → 21M1907+183#9200#9017
21M → 35K4732+15#9017#9002
35K → 23M13820+118#9002#8884
23M → 24M9230+62#8884#8822
24M → 40K7338+35#8822#8787
40K → 25.2M5218+34#8787#8753
25.2M → Finish12214+108#8753#8645
TOTALS3304*440+2864

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing