Boston Marathon logo
BOSTON MARATHON 2023

Dan Clubb

Bib: 3930•M

TX

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 14%
Gender (Male)
#0 / 15176
Top 24%
Masters (Masters Men)
#0 / 9891
Top 11%
Division (M50-54)
#0 / 2052
Top 6%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:58
Rank: #4115
Start → 5K
20:58 | 6:45/mi
10K· 6.21 mi
41:41
Rank: #4064 (+51)
5K → 10K
20:43 | 6:40/mi
15K· 9.32 mi
1:02:28
Rank: #4031 (+33)
10K → 15K
20:47 | 6:41/mi
20K· 12.43 mi
1:23:26
Rank: #4002 (+29)
15K → 20K
20:58 | 6:45/mi
Half· 13.11 mi
1:28:03
Rank: #4039 (-37)
20K → Half
4:37 | 6:46/mi
25K· 15.53 mi
1:44:34
Rank: #4063 (-24)
Half → 25K
16:31 | 6:49/mi
30K· 18.64 mi
2:06:20
Rank: #4093 (-30)
25K → 30K
21:46 | 7:00/mi
20M
2:15:54
Rank: #4105 (-12)
30K → 20M
9:34 | 7:02/mi
21M
2:23:19
Rank: #4092 (+13)
20M → 21M
7:25 | 7:25/mi
35K· 21.75 mi
2:28:19
Rank: #4048 (+44)
21M → 35K
5:00 | 6:41/mi
23M
2:37:02
Rank: #3991 (+57)
35K → 23M
8:43 | 6:58/mi
24M
2:43:38
Rank: #3897 (+94)
23M → 24M
6:36 | 6:36/mi
40K· 24.85 mi
2:49:27
Rank: #3823 (+74)
24M → 40K
5:49 | 6:48/mi
25.2M
2:52:03
Rank: #3824 (-1)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
2:58:54
Rank: #3820 (+4)
25.2M → Finish
6:51 | 6:43/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 HalfFaster
Distance13.11 mi
Time1:28:03
Pace6:43 /mi
2nd Half
Distance13.11 mi
Time1:30:51
Pace6:56 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:4120:586:4520:58
6:45
-
10K
6.21 mi10:43:2441:416:4220:43
6:40
-0:05
15K
9.32 mi11:04:111:02:286:4220:47
6:41
+0:01
20K
12.43 mi11:25:091:23:266:4320:58
6:45
+0:04
Half
13.11 mi11:29:461:28:036:434:37
6:46
+0:01
25K
15.53 mi11:46:171:44:346:4416:31
6:49
+0:03
30K
18.64 mi12:08:032:06:206:4721:46
7:00
+0:11
20M
20.00 mi12:17:372:15:546:489:34
7:02
+0:02
21M
21.00 mi12:25:022:23:196:497:25
7:25
+0:23
35K
21.75 mi12:30:022:28:196:495:00
6:41
-0:44
23M
23.00 mi12:38:452:37:026:508:43
6:58
+0:17
24M
24.00 mi12:45:212:43:386:496:36
6:36
-0:22
40K
24.85 mi12:51:102:49:276:495:49
6:48
+0:12
25.2M
25.20 mi12:53:462:52:036:502:36
7:32
+0:44
Finish
26.22 mi13:00:372:58:546:506:51
6:43
-0:49

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

6:36 /mi

Average Pace

6:50 /mi

Slowest Pace

7:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:48:53

94% of race

Time at Steady Pace

10:01

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:49 /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 mi10:22:4120:586:4520:58
6:45
#4115
10K
6.21 mi10:43:2441:416:4220:43
6:40
#4064
15K
9.32 mi11:04:111:02:286:4220:47
6:41
#4031
20K
12.43 mi11:25:091:23:266:4320:58
6:45
#4002
Half
13.11 mi11:29:461:28:036:434:37
6:46
#4039
25K
15.53 mi11:46:171:44:346:4416:31
6:49
#4063
30K
18.64 mi12:08:032:06:206:4721:46
7:00
#4093
20M
20.00 mi12:17:372:15:546:489:34
7:02
#4105
21M
21.00 mi12:25:022:23:196:497:25
7:25
#4092
35K
21.75 mi12:30:022:28:196:495:00
6:41
#4048
23M
23.00 mi12:38:452:37:026:508:43
6:58
#3991
24M
24.00 mi12:45:212:43:386:496:36
6:36
#3897
40K
24.85 mi12:51:102:49:276:495:49
6:48
#3823
25.2M
25.20 mi12:53:462:52:036:502:36
7:32
#3824
Finish
26.22 mi13:00:372:58:546:506:51
6:43
#3820
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi4115386038604030(Top 15%)3786(Top 25%)3786(Top 185%)
10K6.21 mi3.10 mi4064+513820+403820+404033(Top 15%)3792(Top 25%)3792(Top 185%)
15K9.32 mi3.11 mi4031+333791+293791+294030(Top 15%)3786(Top 25%)3786(Top 185%)
20K12.43 mi3.11 mi4002+293765+263765+263958(Top 15%)3724(Top 25%)3724(Top 181%)
Half13.11 mi0.68 mi4039-373794-293794-294904(Top 18%)4536(Top 30%)4536(Top 221%)
25K15.53 mi2.42 mi4063-243817-233817-234249(Top 16%)3974(Top 26%)3974(Top 194%)
30K18.64 mi3.11 mi4093-303846-293846-294368(Top 16%)4056(Top 27%)4056(Top 198%)
20M20.00 mi1.36 mi4105-123855-93855-94252(Top 16%)3923(Top 26%)3923(Top 191%)
21M21.00 mi1.00 mi4092+133838+173838+174183(Top 16%)3835(Top 25%)3835(Top 187%)
35K21.75 mi0.75 mi4048+443798+403798+403472(Top 13%)3224(Top 21%)3224(Top 157%)
23M23.00 mi1.25 mi3991+573743+553743+553583(Top 13%)3322(Top 22%)3322(Top 162%)
24M24.00 mi1.00 mi3897+943657+863657+862583(Top 10%)2411(Top 16%)2411(Top 117%)
40K24.85 mi0.85 mi3823+743593+643593+642858(Top 11%)2632(Top 17%)2632(Top 128%)
25.2M25.20 mi0.35 mi3824-1359335934037(Top 15%)3579(Top 24%)3579(Top 174%)
Finish26.22 mi1.02 mi3820+43586+73586+73624(Top 14%)3238(Top 21%)3238(Top 158%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

4030

Males

3786

M50-54

3786

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4033

Males

3792

M50-54

3792

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

4030

Males

3786

M50-54

3786

15K→20K

9.3 - 12.4 mi

Top 15%
×5stories
+106ft-86ft

Overall

3958

Males

3724

M50-54

3724

20K→Half

12.4 - 13.1 mi

Top 18%
×2stories
+19ft-37ft

Overall

4904

Males

4536

M50-54

4536

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4249

Males

3974

M50-54

3974

25K→30K

15.5 - 18.6 mi

Top 16%
×9stories
+181ft-148ft

Overall

4368

Males

4056

M50-54

4056

30K→20M

18.6 - 20.0 mi

Top 16%
×5stories
+64ft-50ft

Overall

4252

Males

3923

M50-54

3923

20M→21M

20.0 - 21.0 mi

Top 16%
×8stories
+106ft-24ft

Overall

4183

Males

3835

M50-54

3835

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3472

Males

3224

M50-54

3224

35K→23M

21.8 - 23.0 mi

Top 13%
×5stories
+23ft-63ft

Overall

3583

Males

3322

M50-54

3322

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2583

Males

2411

M50-54

2411

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2858

Males

2632

M50-54

2632

40K→25.2M

24.9 - 25.2 mi

Top 15%
×1story
+13ft-16ft

Overall

4037

Males

3579

M50-54

3579

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3624

Males

3238

M50-54

3238

Passing Analysis

Category:
Athletes Passed
1246
Passed By
951
Net Change
+295
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4115
5K → 10K255204+51#4115#4064
10K → 15K135102+33#4064#4031
15K → 20K12394+29#4031#4002
20K → Half1047-37#4002#4039
Half → 25K6993-24#4039#4063
25K → 30K110140-30#4063#4093
30K → 20M5062-12#4093#4105
20M → 21M8067+13#4105#4092
21M → 35K528+44#4092#4048
35K → 23M9033+57#4048#3991
23M → 24M10814+94#3991#3897
24M → 40K9319+74#3897#3823
40K → 25.2M2425-1#3823#3824
25.2M → Finish4743+4#3824#3820
TOTALS1246951+295
📊

Passing Visuals

Category:

📈Position Graph

Loading...

🎨Heatmap Timeline

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