Boston Marathon logo
BOSTON MARATHON 2023

Michael Mcnamara

Bib: 2522•M

WA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 15%
Division (M18-39)
#0 / 5285
Top 33%
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
6:37/mi
20:34
↑ 97↓ 3451.5%
10K· 6.21 mi
6:26/mi
40:32
↑ 79↓ 1380.4%
15K· 9.32 mi
6:29/mi
1:00:40
↑ 67↓ 78
20K· 12.43 mi
6:31/mi
1:20:56
↑ 106↓ 860.1%
Half· 13.11 mi
6:30/mi
1:25:22
↑ 19↓ 370.5%
25K· 15.53 mi
6:35/mi
1:41:19
↑ 66↓ 880.2%
30K· 18.64 mi
6:47/mi
2:02:24
↑ 181↓ 1480.2%
20M
6:51/mi
2:11:43
↑ 64↓ 500.2%
21M
7:05/mi
2:18:48
↑ 106↓ 241.6%
35K· 21.75 mi
6:26/mi
2:23:37
↑ 17↓ 861.7%
23M
6:42/mi
2:32:00
↑ 23↓ 630.6%
24M
6:32/mi
2:38:32
↓ 821.3%
40K· 24.85 mi
6:47/mi
2:44:20
↓ 200.3%
25.2M
7:09/mi
2:46:48
↑ 13↓ 160.2%
Finish· 26.22 mi
6:27/mi
2:53:22
↑ 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
Time1:25:22
Pace6:31 /mi
2nd Half
Distance13.11 mi
Time1:28:00
Pace6:43 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:2120:346:3720:34
6:37
-
10K
6.21 mi10:41:1940:326:3119:58
6:26
-0:11
15K
9.32 mi11:01:271:00:406:3120:08
6:29
+0:03
20K
12.43 mi11:21:431:20:566:3120:16
6:31
+0:02
Half
13.11 mi11:26:091:25:226:314:26
6:30
-0:01
25K
15.53 mi11:42:061:41:196:3115:57
6:35
+0:05
30K
18.64 mi12:03:112:02:246:3421:05
6:47
+0:12
20M
20.00 mi12:12:302:11:436:359:19
6:51
+0:04
21M
21.00 mi12:19:352:18:486:377:05
7:05
+0:14
35K
21.75 mi12:24:242:23:376:364:49
6:26
-0:39
23M
23.00 mi12:32:472:32:006:378:23
6:42
+0:16
24M
24.00 mi12:39:192:38:326:366:32
6:32
-0:10
40K
24.85 mi12:45:072:44:206:375:48
6:47
+0:15
25.2M
25.20 mi12:47:352:46:486:372:28
7:09
+0:22
Finish
26.22 mi12:54:092:53:226:376:34
6:27
-0:42

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

6:26 /mi

Average Pace

6:37 /mi

Slowest Pace

7:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:49

94% of race

Time at Steady Pace

9:33

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:37 /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 mi10:21:2120:346:3720:34
6:37
#3008
10K
6.21 mi10:41:1940:326:3119:58
6:26
#2642
15K
9.32 mi11:01:271:00:406:3120:08
6:29
#2582
20K
12.43 mi11:21:431:20:566:3120:16
6:31
#2520
Half
13.11 mi11:26:091:25:226:314:26
6:30
#2528
25K
15.53 mi11:42:061:41:196:3115:57
6:35
#2528
30K
18.64 mi12:03:112:02:246:3421:05
6:47
#2548
20M
20.00 mi12:12:302:11:436:359:19
6:51
#2568
21M
21.00 mi12:19:352:18:486:377:05
7:05
#2535
35K
21.75 mi12:24:242:23:376:364:49
6:26
#2492
23M
23.00 mi12:32:472:32:006:378:23
6:42
#2432
24M
24.00 mi12:39:192:38:326:366:32
6:32
#2404
40K
24.85 mi12:45:072:44:206:375:48
6:47
#2388
25.2M
25.20 mi12:47:352:46:486:372:28
7:09
#2369
Finish
26.22 mi12:54:092:53:226:376:34
6:27
#2342
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3008285028502525(Top 9%)2421(Top 16%)2421(Top 46%)
10K6.21 mi3.10 mi2642+3662522+3282522+3282370(Top 9%)2270(Top 15%)2270(Top 43%)
15K9.32 mi3.11 mi2582+602467+552467+552525(Top 9%)2421(Top 16%)2421(Top 46%)
20K12.43 mi3.11 mi2520+622412+552412+552415(Top 9%)2313(Top 15%)2313(Top 44%)
Half13.11 mi0.68 mi2528-82421-92421-92740(Top 10%)2624(Top 17%)2624(Top 50%)
25K15.53 mi2.42 mi25282420+12420+12573(Top 10%)2462(Top 16%)2462(Top 47%)
30K18.64 mi3.11 mi2548-202436-162436-162869(Top 11%)2719(Top 18%)2719(Top 51%)
20M20.00 mi1.36 mi2568-202453-172453-173127(Top 12%)2933(Top 19%)2933(Top 55%)
21M21.00 mi1.00 mi2535+332426+272426+272529(Top 9%)2387(Top 16%)2387(Top 45%)
35K21.75 mi0.75 mi2492+432387+392387+392131(Top 8%)2024(Top 13%)2024(Top 38%)
23M23.00 mi1.25 mi2432+602328+592328+592163(Top 8%)2043(Top 13%)2043(Top 39%)
24M24.00 mi1.00 mi2404+282300+282300+282226(Top 8%)2084(Top 14%)2084(Top 39%)
40K24.85 mi0.85 mi2388+162283+172283+172726(Top 10%)2512(Top 17%)2512(Top 48%)
25.2M25.20 mi0.35 mi2369+192266+172266+172286(Top 9%)2119(Top 14%)2119(Top 40%)
Finish26.22 mi1.02 mi2342+272242+242242+242208(Top 8%)2048(Top 13%)2048(Top 39%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 9%
×21story building
+97ft-345ft

Overall

2525

Males

2421

M18-39

2421

5K→10K

3.1 - 6.2 mi

Top 9%
×5story building
+79ft-138ft

Overall

2370

Males

2270

M18-39

2270

10K→15K

6.2 - 9.3 mi

Top 9%
×3story building
+67ft-78ft

Overall

2525

Males

2421

M18-39

2421

15K→20K

9.3 - 12.4 mi

Top 9%
×5story building
+106ft-86ft

Overall

2415

Males

2313

M18-39

2313

20K→Half

12.4 - 13.1 mi

Top 10%
×2story building
+19ft-37ft

Overall

2740

Males

2624

M18-39

2624

Half→25K

13.1 - 15.5 mi

Top 10%
×4story building
+66ft-88ft

Overall

2573

Males

2462

M18-39

2462

25K→30K

15.5 - 18.6 mi

Top 11%
×9story building
+181ft-148ft

Overall

2869

Males

2719

M18-39

2719

30K→20M

18.6 - 20.0 mi

Top 12%
×5story building
+64ft-50ft

Overall

3127

Males

2933

M18-39

2933

20M→21M

20.0 - 21.0 mi

Top 9%
×8story building
+106ft-24ft

Overall

2529

Males

2387

M18-39

2387

21M→35K

21.0 - 21.8 mi

Top 8%
×7story building
+17ft-86ft

Overall

2131

Males

2024

M18-39

2024

35K→23M

21.8 - 23.0 mi

Top 8%
×5story building
+23ft-63ft

Overall

2163

Males

2043

M18-39

2043

23M→24M

23.0 - 24.0 mi

Top 8%
×6story building
+12ft-82ft

Overall

2226

Males

2084

M18-39

2084

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2726

Males

2512

M18-39

2512

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2286

Males

2119

M18-39

2119

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2story building
+22ft-21ft

Overall

2208

Males

2048

M18-39

2048

Passing Analysis

Category:
Athletes Passed
1062
Passed By
396
Net Change
+666
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3008
5K → 10K40236+366#3008#2642
10K → 15K11252+60#2642#2582
15K → 20K9432+62#2582#2520
20K → Half715-8#2520#2528
Half → 25K51510#2528#2528
25K → 30K5777-20#2528#2548
30K → 20M3050-20#2548#2568
20M → 21M5724+33#2568#2535
21M → 35K474+43#2535#2492
35K → 23M666+60#2492#2432
23M → 24M4214+28#2432#2404
24M → 40K3216+16#2404#2388
40K → 25.2M245+19#2388#2369
25.2M → Finish4114+27#2369#2342
TOTALS1062396+666
📊

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