Boston Marathon logo
BOSTON MARATHON 2023

Sean Haggerty

Bib: 4442•M

MA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 27%
Gender (Male)
#0 / 15176
Top 41%
Masters (Masters Men)
#0 / 9891
Top 27%
Division (M50-54)
#0 / 2052
Top 22%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:01
Rank: #8871
Start → 5K
23:01 | 7:25/mi
10K· 6.21 mi
46:11
Rank: #9425 (-554)
5K → 10K
23:10 | 7:27/mi
15K· 9.32 mi
1:10:10
Rank: #10300 (-875)
10K → 15K
23:59 | 7:43/mi
20K· 12.43 mi
1:33:29
Rank: #10025 (+275)
15K → 20K
23:19 | 7:30/mi
Half· 13.11 mi
1:38:30
Rank: #9967 (+58)
20K → Half
5:01 | 7:21/mi
25K· 15.53 mi
1:56:24
Rank: #9580 (+387)
Half → 25K
17:54 | 7:23/mi
30K· 18.64 mi
2:19:36
Rank: #9072 (+508)
25K → 30K
23:12 | 7:28/mi
20M
2:29:19
Rank: #8680 (+392)
30K → 20M
9:43 | 7:09/mi
21M
2:36:53
Rank: #8430 (+250)
20M → 21M
7:34 | 7:34/mi
35K· 21.75 mi
2:42:03
Rank: #8256 (+174)
21M → 35K
5:10 | 6:54/mi
23M
2:50:48
Rank: #7895 (+361)
35K → 23M
8:45 | 6:59/mi
24M
2:57:38
Rank: #7625 (+270)
23M → 24M
6:50 | 6:50/mi
40K· 24.85 mi
3:03:29
Rank: #7409 (+216)
24M → 40K
5:51 | 6:51/mi
25.2M
3:06:01
Rank: #7326 (+83)
40K → 25.2M
2:32 | 7:21/mi
Finish· 26.22 mi
3:12:51
Rank: #7108 (+218)
25.2M → Finish
6:50 | 6:42/mi

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 Half
Distance13.11 mi
Time1:38:30
Pace7:31 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:34:21
Pace7:12 /mi
📊Negative Split: 4.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:2323:017:2523:01
7:25
-
10K
6.21 mi10:48:3346:117:2623:10
7:27
+0:02
15K
9.32 mi11:12:321:10:107:3223:59
7:43
+0:16
20K
12.43 mi11:35:511:33:297:3123:19
7:30
-0:13
Half
13.11 mi11:40:521:38:307:315:01
7:21
-0:09
25K
15.53 mi11:58:461:56:247:3017:54
7:23
+0:02
30K
18.64 mi12:21:582:19:367:2923:12
7:28
+0:05
20M
20.00 mi12:31:412:29:197:289:43
7:09
-0:19
21M
21.00 mi12:39:152:36:537:287:34
7:34
+0:25
35K
21.75 mi12:44:252:42:037:275:10
6:54
-0:40
23M
23.00 mi12:53:102:50:487:268:45
6:59
+0:05
24M
24.00 mi13:00:002:57:387:246:50
6:50
-0:09
40K
24.85 mi13:05:513:03:297:235:51
6:51
+0:01
25.2M
25.20 mi13:08:233:06:017:232:32
7:21
+0:30
Finish
26.22 mi13:15:133:12:517:226:50
6:42
-0:39

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

6:42 /mi

Average Pace

7:22 /mi

Slowest Pace

7:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

50:42

26% of race

Time at Steady Pace

2:22:09

74% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:21 /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 mi10:25:2323:017:2523:01
7:25
#8871
10K
6.21 mi10:48:3346:117:2623:10
7:27
#9425
15K
9.32 mi11:12:321:10:107:3223:59
7:43
#10300
20K
12.43 mi11:35:511:33:297:3123:19
7:30
#10025
Half
13.11 mi11:40:521:38:307:315:01
7:21
#9967
25K
15.53 mi11:58:461:56:247:3017:54
7:23
#9580
30K
18.64 mi12:21:582:19:367:2923:12
7:28
#9072
20M
20.00 mi12:31:412:29:197:289:43
7:09
#8680
21M
21.00 mi12:39:152:36:537:287:34
7:34
#8430
35K
21.75 mi12:44:252:42:037:275:10
6:54
#8256
23M
23.00 mi12:53:102:50:487:268:45
6:59
#7895
24M
24.00 mi13:00:002:57:387:246:50
6:50
#7625
40K
24.85 mi13:05:513:03:297:235:51
6:51
#7409
25.2M
25.20 mi13:08:233:06:017:232:32
7:21
#7326
Finish
26.22 mi13:15:133:12:517:226:50
6:42
#7108
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi88717513751311991(Top 45%)9073(Top 60%)9073(Top 442%)
10K6.21 mi3.10 mi9425-5547829-3167829-31610098(Top 38%)8214(Top 54%)8214(Top 400%)
15K9.32 mi3.11 mi10300-8758327-4988327-49811991(Top 45%)9073(Top 60%)9073(Top 442%)
20K12.43 mi3.11 mi10025+2758172+1558172+1559327(Top 35%)7697(Top 51%)7697(Top 375%)
Half13.11 mi0.68 mi9967+588129+438129+438926(Top 34%)7442(Top 49%)7442(Top 363%)
25K15.53 mi2.42 mi9580+3877887+2427887+2427848(Top 29%)6698(Top 44%)6698(Top 326%)
30K18.64 mi3.11 mi9072+5087546+3417546+3417001(Top 26%)6066(Top 40%)6066(Top 296%)
20M20.00 mi1.36 mi8680+3927283+2637283+2634885(Top 18%)4450(Top 29%)4450(Top 217%)
21M21.00 mi1.00 mi8430+2507108+1757108+1754930(Top 19%)4433(Top 29%)4433(Top 216%)
35K21.75 mi0.75 mi8256+1746988+1206988+1204839(Top 18%)4375(Top 29%)4375(Top 213%)
23M23.00 mi1.25 mi7895+3616742+2466742+2463755(Top 14%)3469(Top 23%)3469(Top 169%)
24M24.00 mi1.00 mi7625+2706553+1896553+1893865(Top 15%)3537(Top 23%)3537(Top 172%)
40K24.85 mi0.85 mi7409+2166378+1756378+1753053(Top 11%)2811(Top 19%)2811(Top 137%)
25.2M25.20 mi0.35 mi7326+836323+556323+553237(Top 12%)2960(Top 20%)2960(Top 144%)
Finish26.22 mi1.02 mi7108+2186153+1706153+1703574(Top 13%)3199(Top 21%)3199(Top 156%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 45%
×21stories
+97ft-345ft

Overall

11991

Males

9073

M50-54

9073

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

10098

Males

8214

M50-54

8214

10K→15K

6.2 - 9.3 mi

Top 45%
×3stories
+67ft-78ft

Overall

11991

Males

9073

M50-54

9073

15K→20K

9.3 - 12.4 mi

Top 35%
×5stories
+106ft-86ft

Overall

9327

Males

7697

M50-54

7697

20K→Half

12.4 - 13.1 mi

Top 34%
×2stories
+19ft-37ft

Overall

8926

Males

7442

M50-54

7442

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

7848

Males

6698

M50-54

6698

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

7001

Males

6066

M50-54

6066

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

4885

Males

4450

M50-54

4450

20M→21M

20.0 - 21.0 mi

Top 19%
×8stories
+106ft-24ft

Overall

4930

Males

4433

M50-54

4433

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4839

Males

4375

M50-54

4375

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3755

Males

3469

M50-54

3469

23M→24M

23.0 - 24.0 mi

Top 15%
×6stories
+12ft-82ft

Overall

3865

Males

3537

M50-54

3537

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

3053

Males

2811

M50-54

2811

40K→25.2M

24.9 - 25.2 mi

Top 12%
×1story
+13ft-16ft

Overall

3237

Males

2960

M50-54

2960

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3574

Males

3199

M50-54

3199

Passing Analysis

Category:
Athletes Passed
3391*
Passed By
1626
Net Change
+1763
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8871
5K → 10K95649-554#8871#9425
10K → 15K27900-875#9425#10300
15K → 20K328*53+275#10300#10025
20K → Half66*8+58#10025#9967
Half → 25K387*0+387#9967#9580
25K → 30K515*7+508#9580#9072
30K → 20M3920+392#9072#8680
20M → 21M2511+250#8680#8430
21M → 35K1773+174#8430#8256
35K → 23M3610+361#8256#7895
23M → 24M2700+270#7895#7625
24M → 40K2160+216#7625#7409
40K → 25.2M852+83#7409#7326
25.2M → Finish2213+218#7326#7108
TOTALS3391*1626+1763

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

📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing