Boston Marathon logo
BOSTON MARATHON 2023

Daniel Elphinston

Bib: 3009•M

NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 18%
Gender (Male)
#0 / 15176
Top 29%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:29
Rank: #5664
Start → 5K
6:55/mi
21:29 split
10K· 6.21 mi
42:04
Rank: #4695 (+969)
5K → 10K
6:38/mi
20:35 split
15K· 9.32 mi
1:02:20
Rank: #3895 (+800)
10K → 15K
6:31/mi
20:16 split
20K· 12.43 mi
1:22:26
Rank: #3330 (+565)
15K → 20K
6:28/mi
20:06 split
Half· 13.11 mi
1:26:48
Rank: #3243 (+87)
20K → Half
6:24/mi
4:22 split
25K· 15.53 mi
1:42:33
Rank: #3015 (+228)
Half → 25K
6:30/mi
15:45 split
30K· 18.64 mi
2:03:24
Rank: #2857 (+158)
25K → 30K
6:43/mi
20:51 split
20M
2:12:54
Rank: #2902 (-45)
30K → 20M
6:59/mi
9:30 split
21M
2:22:26
Rank: #3724 (-822)
20M → 21M
9:32/mi
9:32 split
35K· 21.75 mi
2:28:13
Rank: #4015 (-291)
21M → 35K
7:44/mi
5:47 split
23M
2:38:57
Rank: #4665 (-650)
35K → 23M
8:34/mi
10:44 split
24M
2:46:13
Rank: #4710 (-45)
23M → 24M
7:16/mi
7:16 split
40K· 24.85 mi
2:53:08
Rank: #4875 (-165)
24M → 40K
8:05/mi
6:55 split
25.2M
2:55:51
Rank: #4869 (+6)
40K → 25.2M
7:53/mi
2:43 split
Finish· 26.22 mi
3:02:40
Rank: #4757 (+112)
25.2M → Finish
6:41/mi
6:49 split

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
Time1:26:48
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:35:52
Pace7:19 /mi
📊Positive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5421:296:5521:29
6:55
-
10K
6.21 mi10:45:2942:046:4620:35
6:38
-0:17
15K
9.32 mi11:05:451:02:206:4120:16
6:31
-0:07
20K
12.43 mi11:25:511:22:266:3820:06
6:28
-0:03
Half
13.11 mi11:30:131:26:486:374:22
6:24
-0:04
25K
15.53 mi11:45:581:42:336:3615:45
6:30
+0:06
30K
18.64 mi12:06:492:03:246:3720:51
6:43
+0:13
20M
20.00 mi12:16:192:12:546:399:30
6:59
+0:16
21M
21.00 mi12:25:512:22:266:479:32
9:32
+2:33
35K
21.75 mi12:31:382:28:136:495:47
7:44
-1:48
23M
23.00 mi12:42:222:38:576:5510:44
8:34
+0:50
24M
24.00 mi12:49:382:46:136:567:16
7:16
-1:18
40K
24.85 mi12:56:332:53:086:586:55
8:05
+0:49
25.2M
25.20 mi12:59:162:55:516:592:43
7:53
-0:12
Finish
26.22 mi13:06:053:02:406:586:49
6:41
-1:12

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

6:24 /mi

Average Pace

6:58 /mi

Slowest Pace

9:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

24:28

13% of race

Time at Steady Pace

2:02:31

67% of race

Time at Slower Pace

35:41

20% of race

Average Pace: 6:58 /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 mi10:24:5421:296:5521:29
6:55
#5664
10K
6.21 mi10:45:2942:046:4620:35
6:38
#4695
15K
9.32 mi11:05:451:02:206:4120:16
6:31
#3895
20K
12.43 mi11:25:511:22:266:3820:06
6:28
#3330
Half
13.11 mi11:30:131:26:486:374:22
6:24
#3243
25K
15.53 mi11:45:581:42:336:3615:45
6:30
#3015
30K
18.64 mi12:06:492:03:246:3720:51
6:43
#2857
20M
20.00 mi12:16:192:12:546:399:30
6:59
#2902
21M
21.00 mi12:25:512:22:266:479:32
9:32
#3724
35K
21.75 mi12:31:382:28:136:495:47
7:44
#4015
23M
23.00 mi12:42:222:38:576:5510:44
8:34
#4665
24M
24.00 mi12:49:382:46:136:567:16
7:16
#4710
40K
24.85 mi12:56:332:53:086:586:55
8:05
#4875
25.2M
25.20 mi12:59:162:55:516:592:43
7:53
#4869
Finish
26.22 mi13:06:053:02:406:586:49
6:41
#4757
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5664520852082782(Top 10%)2658(Top 18%)2658(Top 50%)
10K6.21 mi3.10 mi4695+9694377+8314377+8313689(Top 14%)3485(Top 23%)3485(Top 66%)
15K9.32 mi3.11 mi3895+8003670+7073670+7072782(Top 10%)2658(Top 18%)2658(Top 50%)
20K12.43 mi3.11 mi3330+5653165+5053165+5052134(Top 8%)2048(Top 13%)2048(Top 39%)
Half13.11 mi0.68 mi3243+873085+803085+802275(Top 9%)2185(Top 14%)2185(Top 41%)
25K15.53 mi2.42 mi3015+2282879+2062879+2062164(Top 8%)2077(Top 14%)2077(Top 39%)
30K18.64 mi3.11 mi2857+1582732+1472732+1472470(Top 9%)2352(Top 15%)2352(Top 45%)
20M20.00 mi1.36 mi2902-452773-412773-413990(Top 15%)3706(Top 24%)3706(Top 70%)
21M21.00 mi1.00 mi3724-8223515-7423515-74216077(Top 60%)10374(Top 68%)10374(Top 196%)
35K21.75 mi0.75 mi4015-2913767-2523767-25210095(Top 38%)7655(Top 50%)7655(Top 145%)
23M23.00 mi1.25 mi4665-6504337-5704337-57013628(Top 51%)9188(Top 61%)9188(Top 174%)
24M24.00 mi1.00 mi4710-454378-414378-416117(Top 23%)5164(Top 34%)5164(Top 98%)
40K24.85 mi0.85 mi4875-1654500-1224500-12210590(Top 40%)7631(Top 50%)7631(Top 144%)
25.2M25.20 mi0.35 mi4869+64491+94491+95728(Top 22%)4748(Top 31%)4748(Top 90%)
Finish26.22 mi1.02 mi4757+1124394+974394+973460(Top 13%)3102(Top 20%)3102(Top 59%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21story building
+97ft-345ft

Overall

2782

Males

2658

M18-39

2658

5K→10K

3.1 - 6.2 mi

Top 14%
×5story building
+79ft-138ft

Overall

3689

Males

3485

M18-39

3485

10K→15K

6.2 - 9.3 mi

Top 10%
×3story building
+67ft-78ft

Overall

2782

Males

2658

M18-39

2658

15K→20K

9.3 - 12.4 mi

Top 8%
×5story building
+106ft-86ft

Overall

2134

Males

2048

M18-39

2048

20K→Half

12.4 - 13.1 mi

Top 9%
×2story building
+19ft-37ft

Overall

2275

Males

2185

M18-39

2185

Half→25K

13.1 - 15.5 mi

Top 8%
×4story building
+66ft-88ft

Overall

2164

Males

2077

M18-39

2077

25K→30K

15.5 - 18.6 mi

Top 9%
×9story building
+181ft-148ft

Overall

2470

Males

2352

M18-39

2352

30K→20M

18.6 - 20.0 mi

Top 15%
×5story building
+64ft-50ft

Overall

3990

Males

3706

M18-39

3706

20M→21M

20.0 - 21.0 mi

Top 60%
×8story building
+106ft-24ft

Overall

16077

Males

10374

M18-39

10374

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

10095

Males

7655

M18-39

7655

35K→23M

21.8 - 23.0 mi

Top 51%
×5story building
+23ft-63ft

Overall

13628

Males

9188

M18-39

9188

23M→24M

23.0 - 24.0 mi

Top 23%
×6story building
+12ft-82ft

Overall

6117

Males

5164

M18-39

5164

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10590

Males

7631

M18-39

7631

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5728

Males

4748

M18-39

4748

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2story building
+22ft-21ft

Overall

3460

Males

3102

M18-39

3102

Passing Analysis

Category:
Athletes Passed
3073
Passed By
2166
Net Change
+907
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5664
5K → 10K98011+969#5664#4695
10K → 15K8044+800#4695#3895
15K → 20K5661+565#3895#3330
20K → Half881+87#3330#3243
Half → 25K2302+228#3243#3015
25K → 30K17416+158#3015#2857
30K → 20M2570-45#2857#2902
20M → 21M0822-822#2902#3724
21M → 35K5296-291#3724#4015
35K → 23M5655-650#4015#4665
23M → 24M3984-45#4665#4710
24M → 40K14179-165#4710#4875
40K → 25.2M2216+6#4875#4869
25.2M → Finish1219+112#4869#4757
TOTALS30732166+907
📊

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing