Boston Marathon logo
BOSTON MARATHON 2023

Alex Bernt

Bib: 3317•M

SD

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
19:51
Rank: #1774
Start → 5K
19:51 | 6:23/mi
10K· 6.21 mi
39:21
Rank: #1711 (+63)
5K → 10K
19:30 | 6:17/mi
15K· 9.32 mi
58:42
Rank: #1573 (+138)
10K → 15K
19:21 | 6:14/mi
20K· 12.43 mi
1:17:57
Rank: #1395 (+178)
15K → 20K
19:15 | 6:12/mi
Half· 13.11 mi
1:22:07
Rank: #1364 (+31)
20K → Half
4:10 | 6:06/mi
25K· 15.53 mi
1:37:22
Rank: #1340 (+24)
Half → 25K
15:15 | 6:17/mi
30K· 18.64 mi
1:57:52
Rank: #1434 (-94)
25K → 30K
20:30 | 6:36/mi
20M
2:06:53
Rank: #1462 (-28)
30K → 20M
9:01 | 6:38/mi
21M
2:14:02
Rank: #1506 (-44)
20M → 21M
7:09 | 7:09/mi
35K· 21.75 mi
2:19:00
Rank: #1540 (-34)
21M → 35K
4:58 | 6:38/mi
23M
2:27:31
Rank: #1581 (-41)
35K → 23M
8:31 | 6:48/mi
24M
2:34:13
Rank: #1605 (-24)
23M → 24M
6:42 | 6:42/mi
40K· 24.85 mi
2:40:05
Rank: #1629 (-24)
24M → 40K
5:52 | 6:52/mi
25.2M
2:42:42
Rank: #1657 (-28)
40K → 25.2M
2:37 | 7:35/mi
Finish· 26.22 mi
2:49:38
Rank: #1714 (-57)
25.2M → Finish
6:56 | 6:48/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
Time1:22:07
Pace6:16 /mi
2nd Half
Distance13.11 mi
Time1:27:31
Pace6:41 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:1919:516:2319:51
6:23
-
10K
6.21 mi10:40:4939:216:2019:30
6:17
-0:06
15K
9.32 mi11:00:1058:426:1819:21
6:14
-0:03
20K
12.43 mi11:19:251:17:576:1619:15
6:12
-0:02
Half
13.11 mi11:23:351:22:076:164:10
6:06
-0:06
25K
15.53 mi11:38:501:37:226:1615:15
6:17
+0:11
30K
18.64 mi11:59:201:57:526:1920:30
6:36
+0:19
20M
20.00 mi12:08:212:06:536:219:01
6:38
+0:02
21M
21.00 mi12:15:302:14:026:237:09
7:09
+0:31
35K
21.75 mi12:20:282:19:006:234:58
6:38
-0:31
23M
23.00 mi12:28:592:27:316:258:31
6:48
+0:10
24M
24.00 mi12:35:412:34:136:266:42
6:42
-0:06
40K
24.85 mi12:41:332:40:056:265:52
6:52
+0:10
25.2M
25.20 mi12:44:102:42:426:272:37
7:35
+0:43
Finish
26.22 mi12:51:062:49:386:286:56
6:48
-0:47

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

6:06 /mi

Average Pace

6:28 /mi

Slowest Pace

7:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:37:22

57% of race

Time at Steady Pace

56:38

33% of race

Time at Slower Pace

15:38

9% 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 mi10:21:1919:516:2319:51
6:23
#1774
10K
6.21 mi10:40:4939:216:2019:30
6:17
#1711
15K
9.32 mi11:00:1058:426:1819:21
6:14
#1573
20K
12.43 mi11:19:251:17:576:1619:15
6:12
#1395
Half
13.11 mi11:23:351:22:076:164:10
6:06
#1364
25K
15.53 mi11:38:501:37:226:1615:15
6:17
#1340
30K
18.64 mi11:59:201:57:526:1920:30
6:36
#1434
20M
20.00 mi12:08:212:06:536:219:01
6:38
#1462
21M
21.00 mi12:15:302:14:026:237:09
7:09
#1506
35K
21.75 mi12:20:282:19:006:234:58
6:38
#1540
23M
23.00 mi12:28:592:27:316:258:31
6:48
#1581
24M
24.00 mi12:35:412:34:136:266:42
6:42
#1605
40K
24.85 mi12:41:332:40:056:265:52
6:52
#1629
25.2M
25.20 mi12:44:102:42:426:272:37
7:35
#1657
Finish
26.22 mi12:51:062:49:386:286:56
6:48
#1714
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1774169116911340(Top 5%)1277(Top 8%)1277(Top 24%)
10K6.21 mi3.10 mi1711+631634+571634+571664(Top 6%)1590(Top 10%)1590(Top 30%)
15K9.32 mi3.11 mi1573+1381503+1311503+1311340(Top 5%)1277(Top 8%)1277(Top 24%)
20K12.43 mi3.11 mi1395+1781329+1741329+1741046(Top 4%)996(Top 7%)996(Top 19%)
Half13.11 mi0.68 mi1364+311300+291300+291067(Top 4%)1019(Top 7%)1019(Top 19%)
25K15.53 mi2.42 mi1340+241279+211279+211306(Top 5%)1249(Top 8%)1249(Top 24%)
30K18.64 mi3.11 mi1434-941370-911370-911940(Top 7%)1854(Top 12%)1854(Top 35%)
20M20.00 mi1.36 mi1462-281397-271397-271990(Top 7%)1895(Top 12%)1895(Top 36%)
21M21.00 mi1.00 mi1506-441439-421439-422811(Top 11%)2636(Top 17%)2636(Top 50%)
35K21.75 mi0.75 mi1540-341471-321471-323176(Top 12%)2961(Top 20%)2961(Top 56%)
23M23.00 mi1.25 mi1581-411511-401511-402641(Top 10%)2474(Top 16%)2474(Top 47%)
24M24.00 mi1.00 mi1605-241534-231534-233075(Top 12%)2850(Top 19%)2850(Top 54%)
40K24.85 mi0.85 mi1629-241556-221556-223076(Top 12%)2820(Top 19%)2820(Top 53%)
25.2M25.20 mi0.35 mi1657-281582-261582-264221(Top 16%)3691(Top 24%)3691(Top 70%)
Finish26.22 mi1.02 mi1714-571638-561638-564047(Top 15%)3568(Top 24%)3568(Top 68%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 5%
×21stories
+97ft-345ft

Overall

1340

Males

1277

M18-39

1277

5K→10K

3.1 - 6.2 mi

Top 6%
×5stories
+79ft-138ft

Overall

1664

Males

1590

M18-39

1590

10K→15K

6.2 - 9.3 mi

Top 5%
×3stories
+67ft-78ft

Overall

1340

Males

1277

M18-39

1277

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1046

Males

996

M18-39

996

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1067

Males

1019

M18-39

1019

Half→25K

13.1 - 15.5 mi

Top 5%
×4stories
+66ft-88ft

Overall

1306

Males

1249

M18-39

1249

25K→30K

15.5 - 18.6 mi

Top 7%
×9stories
+181ft-148ft

Overall

1940

Males

1854

M18-39

1854

30K→20M

18.6 - 20.0 mi

Top 7%
×5stories
+64ft-50ft

Overall

1990

Males

1895

M18-39

1895

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

2811

Males

2636

M18-39

2636

21M→35K

21.0 - 21.8 mi

Top 12%
×7stories
+17ft-86ft

Overall

3176

Males

2961

M18-39

2961

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2641

Males

2474

M18-39

2474

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3075

Males

2850

M18-39

2850

24M→40K

24.0 - 24.9 mi

Top 12%
×1story
+6ft-20ft

Overall

3076

Males

2820

M18-39

2820

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4221

Males

3691

M18-39

3691

25.2M→Finish

25.2 - 26.2 mi

Top 15%
×2stories
+22ft-21ft

Overall

4047

Males

3568

M18-39

3568

Passing Analysis

Category:
Athletes Passed
648
Passed By
588
Net Change
+60
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1774
5K → 10K12764+63#1774#1711
10K → 15K15113+138#1711#1573
15K → 20K1791+178#1573#1395
20K → Half310+31#1395#1364
Half → 25K4016+24#1364#1340
25K → 30K24118-94#1340#1434
30K → 20M1341-28#1434#1462
20M → 21M1458-44#1462#1506
21M → 35K438-34#1506#1540
35K → 23M1253-41#1540#1581
23M → 24M2044-24#1581#1605
24M → 40K1741-24#1605#1629
40K → 25.2M230-28#1629#1657
25.2M → Finish1471-57#1657#1714
TOTALS648588+60
📊

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