Boston Marathon logo
BOSTON MARATHON 2023

Stephen Wofford

Bib: 1821•M

NC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 6%
Gender (Male)
#0 / 15176
Top 11%
Division (M18-39)
#0 / 5285
Top 25%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:50
Rank: #1751
Start → 5K
6:23/mi
19:50 split
10K· 6.21 mi
39:41
Rank: #1923 (-172)
5K → 10K
6:23/mi
19:51 split
15K· 9.32 mi
59:30
Rank: #1934 (-11)
10K → 15K
6:23/mi
19:49 split
20K· 12.43 mi
1:19:24
Rank: #1882 (+52)
15K → 20K
6:24/mi
19:54 split
Half· 13.11 mi
1:23:42
Rank: #1873 (+9)
20K → Half
6:18/mi
4:18 split
25K· 15.53 mi
1:39:11
Rank: #1828 (+45)
Half → 25K
6:23/mi
15:29 split
30K· 18.64 mi
1:59:20
Rank: #1734 (+94)
25K → 30K
6:29/mi
20:09 split
20M
2:08:09
Rank: #1694 (+40)
30K → 20M
6:29/mi
8:49 split
21M
2:14:56
Rank: #1658 (+36)
20M → 21M
6:47/mi
6:47 split
35K· 21.75 mi
2:19:49
Rank: #1679 (-21)
21M → 35K
6:32/mi
4:53 split
23M
2:28:01
Rank: #1666 (+13)
35K → 23M
6:33/mi
8:12 split
24M
2:34:33
Rank: #1663 (+3)
23M → 24M
6:32/mi
6:32 split
40K· 24.85 mi
2:40:15
Rank: #1648 (+15)
24M → 40K
6:40/mi
5:42 split
25.2M
2:42:42
Rank: #1655 (-7)
40K → 25.2M
7:06/mi
2:27 split
Finish· 26.22 mi
2:49:26
Rank: #1683 (-28)
25.2M → Finish
6:36/mi
6:44 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
Time1:23:42
Pace6:23 /mi
2nd Half
Distance13.11 mi
Time1:25:44
Pace6:32 /mi
📊Positive Split: 2.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:20:1519:506:2319:50
6:23
-
10K
6.21 mi10:40:0639:416:2319:51
6:23
0:00
15K
9.32 mi10:59:5559:306:2319:49
6:23
0:00
20K
12.43 mi11:19:491:19:246:2319:54
6:24
+0:01
Half
13.11 mi11:24:071:23:426:234:18
6:18
-0:06
25K
15.53 mi11:39:361:39:116:2315:29
6:23
+0:05
30K
18.64 mi11:59:451:59:206:2420:09
6:29
+0:06
20M
20.00 mi12:08:342:08:096:248:49
6:29
0:00
21M
21.00 mi12:15:212:14:566:266:47
6:47
+0:18
35K
21.75 mi12:20:142:19:496:264:53
6:32
-0:15
23M
23.00 mi12:28:262:28:016:268:12
6:33
+0:01
24M
24.00 mi12:34:582:34:336:266:32
6:32
-0:01
40K
24.85 mi12:40:402:40:156:275:42
6:40
+0:08
25.2M
25.20 mi12:43:072:42:426:272:27
7:06
+0:26
Finish
26.22 mi12:49:512:49:266:286:44
6:36
-0:30

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

6:18 /mi

Average Pace

6:28 /mi

Slowest Pace

7:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:46:59

99% of race

Time at Steady Pace

2:27

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:28 /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 mi10:20:1519:506:2319:50
6:23
#1751
10K
6.21 mi10:40:0639:416:2319:51
6:23
#1923
15K
9.32 mi10:59:5559:306:2319:49
6:23
#1934
20K
12.43 mi11:19:491:19:246:2319:54
6:24
#1882
Half
13.11 mi11:24:071:23:426:234:18
6:18
#1873
25K
15.53 mi11:39:361:39:116:2315:29
6:23
#1828
30K
18.64 mi11:59:451:59:206:2420:09
6:29
#1734
20M
20.00 mi12:08:342:08:096:248:49
6:29
#1694
21M
21.00 mi12:15:212:14:566:266:47
6:47
#1658
35K
21.75 mi12:20:142:19:496:264:53
6:32
#1679
23M
23.00 mi12:28:262:28:016:268:12
6:33
#1666
24M
24.00 mi12:34:582:34:336:266:32
6:32
#1663
40K
24.85 mi12:40:402:40:156:275:42
6:40
#1648
25.2M
25.20 mi12:43:072:42:426:272:27
7:06
#1655
Finish
26.22 mi12:49:512:49:266:286:44
6:36
#1683
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1751166916691985(Top 7%)1900(Top 13%)1900(Top 36%)
10K6.21 mi3.10 mi1923-1721840-1711840-1712188(Top 8%)2096(Top 14%)2096(Top 40%)
15K9.32 mi3.11 mi1934-111852-121852-121985(Top 7%)1900(Top 13%)1900(Top 36%)
20K12.43 mi3.11 mi1882+521802+501802+501813(Top 7%)1736(Top 11%)1736(Top 33%)
Half13.11 mi0.68 mi1873+91794+81794+81773(Top 7%)1702(Top 11%)1702(Top 32%)
25K15.53 mi2.42 mi1828+451748+461748+461665(Top 6%)1595(Top 11%)1595(Top 30%)
30K18.64 mi3.11 mi1734+941658+901658+901520(Top 6%)1455(Top 10%)1455(Top 28%)
20M20.00 mi1.36 mi1694+401621+371621+371407(Top 5%)1342(Top 9%)1342(Top 25%)
21M21.00 mi1.00 mi1658+361584+371584+371361(Top 5%)1298(Top 9%)1298(Top 25%)
35K21.75 mi0.75 mi1679-211606-221606-222515(Top 9%)2374(Top 16%)2374(Top 45%)
23M23.00 mi1.25 mi1666+131593+131593+131602(Top 6%)1522(Top 10%)1522(Top 29%)
24M24.00 mi1.00 mi1663+31590+31590+32216(Top 8%)2074(Top 14%)2074(Top 39%)
40K24.85 mi0.85 mi1648+151575+151575+152168(Top 8%)2019(Top 13%)2019(Top 38%)
25.2M25.20 mi0.35 mi1655-71580-51580-52083(Top 8%)1939(Top 13%)1939(Top 37%)
Finish26.22 mi1.02 mi1683-281607-271607-272993(Top 11%)2702(Top 18%)2702(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×21story building
+97ft-345ft

Overall

1985

Males

1900

M18-39

1900

5K→10K

3.1 - 6.2 mi

Top 8%
×5story building
+79ft-138ft

Overall

2188

Males

2096

M18-39

2096

10K→15K

6.2 - 9.3 mi

Top 7%
×3story building
+67ft-78ft

Overall

1985

Males

1900

M18-39

1900

15K→20K

9.3 - 12.4 mi

Top 7%
×5story building
+106ft-86ft

Overall

1813

Males

1736

M18-39

1736

20K→Half

12.4 - 13.1 mi

Top 7%
×2story building
+19ft-37ft

Overall

1773

Males

1702

M18-39

1702

Half→25K

13.1 - 15.5 mi

Top 6%
×4story building
+66ft-88ft

Overall

1665

Males

1595

M18-39

1595

25K→30K

15.5 - 18.6 mi

Top 6%
×9story building
+181ft-148ft

Overall

1520

Males

1455

M18-39

1455

30K→20M

18.6 - 20.0 mi

Top 5%
×5story building
+64ft-50ft

Overall

1407

Males

1342

M18-39

1342

20M→21M

20.0 - 21.0 mi

Top 5%
×8story building
+106ft-24ft

Overall

1361

Males

1298

M18-39

1298

21M→35K

21.0 - 21.8 mi

Top 9%
×7story building
+17ft-86ft

Overall

2515

Males

2374

M18-39

2374

35K→23M

21.8 - 23.0 mi

Top 6%
×5story building
+23ft-63ft

Overall

1602

Males

1522

M18-39

1522

23M→24M

23.0 - 24.0 mi

Top 8%
×6story building
+12ft-82ft

Overall

2216

Males

2074

M18-39

2074

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2168

Males

2019

M18-39

2019

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2083

Males

1939

M18-39

1939

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2story building
+22ft-21ft

Overall

2993

Males

2702

M18-39

2702

Passing Analysis

Category:
Athletes Passed
586
Passed By
518
Net Change
+68
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1751
5K → 10K32204-172#1751#1923
10K → 15K5566-11#1923#1934
15K → 20K8735+52#1934#1882
20K → Half145+9#1882#1873
Half → 25K5813+45#1873#1828
25K → 30K11319+94#1828#1734
30K → 20M488+40#1734#1694
20M → 21M426+36#1694#1658
21M → 35K1233-21#1658#1679
35K → 23M3623+13#1679#1666
23M → 24M2926+3#1666#1663
24M → 40K3217+15#1663#1648
40K → 25.2M815-7#1648#1655
25.2M → Finish2048-28#1655#1683
TOTALS586518+68
📊

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