Boston Marathon logo
BOSTON MARATHON 2023

Alex Knueppel

Bib: 591•M

MA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 2%
Gender (Male)
#0 / 15176
Top 3%
Division (M18-39)
#0 / 5285
Top 8%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:08
Rank: #436
Start → 5K
18:08 | 5:50/mi
10K· 6.21 mi
36:05
Rank: #412 (+24)
5K → 10K
17:57 | 5:47/mi
15K· 9.32 mi
54:12
Rank: #401 (+11)
10K → 15K
18:07 | 5:50/mi
20K· 12.43 mi
1:12:22
Rank: #386 (+15)
15K → 20K
18:10 | 5:51/mi
Half· 13.11 mi
1:16:20
Rank: #387 (-1)
20K → Half
3:58 | 5:49/mi
25K· 15.53 mi
1:30:50
Rank: #401 (-14)
Half → 25K
14:30 | 5:59/mi
30K· 18.64 mi
1:49:59
Rank: #422 (-21)
25K → 30K
19:09 | 6:10/mi
20M
1:58:32
Rank: #448 (-26)
30K → 20M
8:33 | 6:18/mi
21M
2:05:25
Rank: #464 (-16)
20M → 21M
6:53 | 6:53/mi
35K· 21.75 mi
2:09:58
Rank: #469 (-5)
21M → 35K
4:33 | 6:05/mi
23M
2:17:57
Rank: #481 (-12)
35K → 23M
7:59 | 6:23/mi
24M
2:24:02
Rank: #483 (-2)
23M → 24M
6:05 | 6:05/mi
40K· 24.85 mi
2:29:27
Rank: #488 (-5)
24M → 40K
5:25 | 6:20/mi
25.2M
2:31:49
Rank: #492 (-4)
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
2:37:57
Rank: #487 (+5)
25.2M → Finish
6:08 | 6:01/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
Time1:16:20
Pace5:49 /mi
2nd Half
Distance13.11 mi
Time1:21:37
Pace6:14 /mi
📊Positive Split: 6.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:1918:085:5018:08
5:50
-
10K
6.21 mi10:36:1636:055:4817:57
5:47
-0:03
15K
9.32 mi10:54:2354:125:4918:07
5:50
+0:03
20K
12.43 mi11:12:331:12:225:4918:10
5:51
+0:01
Half
13.11 mi11:16:311:16:205:493:58
5:49
-0:02
25K
15.53 mi11:31:011:30:505:5114:30
5:59
+0:10
30K
18.64 mi11:50:101:49:595:5419:09
6:10
+0:11
20M
20.00 mi11:58:431:58:325:568:33
6:18
+0:08
21M
21.00 mi12:05:362:05:255:586:53
6:53
+0:35
35K
21.75 mi12:10:092:09:585:594:33
6:05
-0:48
23M
23.00 mi12:18:082:17:576:007:59
6:23
+0:18
24M
24.00 mi12:24:132:24:026:006:05
6:05
-0:18
40K
24.85 mi12:29:382:29:276:015:25
6:20
+0:15
25.2M
25.20 mi12:32:002:31:496:012:22
6:52
+0:32
Finish
26.22 mi12:38:082:37:576:026:08
6:01
-0:51

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

5:47 /mi

Average Pace

6:02 /mi

Slowest Pace

6:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:43

89% of race

Time at Steady Pace

7:59

5% of race

Time at Slower Pace

9:15

6% of race

Average Pace: 6:01 /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 mi10:18:1918:085:5018:08
5:50
#436
10K
6.21 mi10:36:1636:055:4817:57
5:47
#412
15K
9.32 mi10:54:2354:125:4918:07
5:50
#401
20K
12.43 mi11:12:331:12:225:4918:10
5:51
#386
Half
13.11 mi11:16:311:16:205:493:58
5:49
#387
25K
15.53 mi11:31:011:30:505:5114:30
5:59
#401
30K
18.64 mi11:50:101:49:595:5419:09
6:10
#422
20M
20.00 mi11:58:431:58:325:568:33
6:18
#448
21M
21.00 mi12:05:362:05:255:586:53
6:53
#464
35K
21.75 mi12:10:092:09:585:594:33
6:05
#469
23M
23.00 mi12:18:082:17:576:007:59
6:23
#481
24M
24.00 mi12:24:132:24:026:006:05
6:05
#483
40K
24.85 mi12:29:382:29:276:015:25
6:20
#488
25.2M
25.20 mi12:32:002:31:496:012:22
6:52
#492
Finish
26.22 mi12:38:082:37:576:026:08
6:01
#487
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi436401401406(Top 2%)372(Top 2%)372(Top 7%)
10K6.21 mi3.10 mi412+24377+24377+24404(Top 2%)369(Top 2%)369(Top 7%)
15K9.32 mi3.11 mi401+11366+11366+11406(Top 2%)372(Top 2%)372(Top 7%)
20K12.43 mi3.11 mi386+15351+15351+15351(Top 1%)319(Top 2%)319(Top 6%)
Half13.11 mi0.68 mi387-1353-2353-2416(Top 2%)385(Top 3%)385(Top 7%)
25K15.53 mi2.42 mi401-14367-14367-14524(Top 2%)487(Top 3%)487(Top 9%)
30K18.64 mi3.11 mi422-21389-22389-22607(Top 2%)571(Top 4%)571(Top 11%)
20M20.00 mi1.36 mi448-26413-24413-24841(Top 3%)800(Top 5%)800(Top 15%)
21M21.00 mi1.00 mi464-16429-16429-161674(Top 6%)1590(Top 10%)1590(Top 30%)
35K21.75 mi0.75 mi469-5432-3432-3851(Top 3%)808(Top 5%)808(Top 15%)
23M23.00 mi1.25 mi481-12444-12444-121011(Top 4%)958(Top 6%)958(Top 18%)
24M24.00 mi1.00 mi483-2447-3447-3714(Top 3%)676(Top 4%)676(Top 13%)
40K24.85 mi0.85 mi488-5452-5452-5974(Top 4%)921(Top 6%)921(Top 17%)
25.2M25.20 mi0.35 mi492-4456-4456-41276(Top 5%)1206(Top 8%)1206(Top 23%)
Finish26.22 mi1.02 mi487+5452+4452+4754(Top 3%)721(Top 5%)721(Top 14%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 2%
×21stories
+97ft-345ft

Overall

406

Males

372

M18-39

372

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

404

Males

369

M18-39

369

10K→15K

6.2 - 9.3 mi

Top 2%
×3stories
+67ft-78ft

Overall

406

Males

372

M18-39

372

15K→20K

9.3 - 12.4 mi

Top 1%
×5stories
+106ft-86ft

Overall

351

Males

319

M18-39

319

20K→Half

12.4 - 13.1 mi

Top 2%
×2stories
+19ft-37ft

Overall

416

Males

385

M18-39

385

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

524

Males

487

M18-39

487

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

607

Males

571

M18-39

571

30K→20M

18.6 - 20.0 mi

Top 3%
×5stories
+64ft-50ft

Overall

841

Males

800

M18-39

800

20M→21M

20.0 - 21.0 mi

Top 6%
×8stories
+106ft-24ft

Overall

1674

Males

1590

M18-39

1590

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

851

Males

808

M18-39

808

35K→23M

21.8 - 23.0 mi

Top 4%
×5stories
+23ft-63ft

Overall

1011

Males

958

M18-39

958

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

714

Males

676

M18-39

676

24M→40K

24.0 - 24.9 mi

Top 4%
×1story
+6ft-20ft

Overall

974

Males

921

M18-39

921

40K→25.2M

24.9 - 25.2 mi

Top 5%
×1story
+13ft-16ft

Overall

1276

Males

1206

M18-39

1206

25.2M→Finish

25.2 - 26.2 mi

Top 3%
×2stories
+22ft-21ft

Overall

754

Males

721

M18-39

721

Passing Analysis

Category:
Athletes Passed
123
Passed By
174
Net Change
-51
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#436
5K → 10K3410+24#436#412
10K → 15K176+11#412#401
15K → 20K194+15#401#386
20K → Half12-1#386#387
Half → 25K418-14#387#401
25K → 30K1233-21#401#422
30K → 20M430-26#422#448
20M → 21M218-16#448#464
21M → 35K16-5#464#469
35K → 23M719-12#469#481
23M → 24M46-2#481#483
24M → 40K510-5#483#488
40K → 25.2M37-4#488#492
25.2M → Finish105+5#492#487
TOTALS123174-51
📊

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