Boston Marathon logo
BOSTON MARATHON 2023

Alfons Passgård

Bib: 5759•M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 7%
Gender (Male)
#0 / 15176
Top 12%
Division (M18-39)
#0 / 5285
Top 28%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:29
Rank: #1343
Start → 5K
6:16/mi
19:29 split
10K· 6.21 mi
38:43
Rank: #1305 (+38)
5K → 10K
6:11/mi
19:14 split
15K· 9.32 mi
58:12
Rank: #1349 (-44)
10K → 15K
6:16/mi
19:29 split
20K· 12.43 mi
1:17:58
Rank: #1403 (-54)
15K → 20K
6:22/mi
19:46 split
Half· 13.11 mi
1:22:19
Rank: #1436 (-33)
20K → Half
6:23/mi
4:21 split
25K· 15.53 mi
1:37:59
Rank: #1529 (-93)
Half → 25K
6:28/mi
15:40 split
30K· 18.64 mi
1:58:43
Rank: #1621 (-92)
25K → 30K
6:40/mi
20:44 split
20M
2:07:59
Rank: #1668 (-47)
30K → 20M
6:49/mi
9:16 split
21M
2:15:11
Rank: #1711 (-43)
20M → 21M
7:12/mi
7:12 split
35K· 21.75 mi
2:19:59
Rank: #1709 (+2)
21M → 35K
6:25/mi
4:48 split
23M
2:28:37
Rank: #1773 (-64)
35K → 23M
6:54/mi
8:38 split
24M
2:35:20
Rank: #1799 (-26)
23M → 24M
6:43/mi
6:43 split
40K· 24.85 mi
2:41:25
Rank: #1871 (-72)
24M → 40K
7:07/mi
6:05 split
25.2M
2:44:06
Rank: #1895 (-24)
40K → 25.2M
7:47/mi
2:41 split
Finish· 26.22 mi
2:51:15
Rank: #1976 (-81)
25.2M → Finish
7:01/mi
7:09 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
Time1:22:19
Pace6:17 /mi
2nd Half
Distance13.11 mi
Time1:28:56
Pace6:47 /mi
📊Positive Split: 8.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:21:5619:296:1619:29
6:16
-
10K
6.21 mi10:41:1038:436:1419:14
6:11
-0:05
15K
9.32 mi11:00:3958:126:1519:29
6:16
+0:05
20K
12.43 mi11:20:251:17:586:1619:46
6:22
+0:06
Half
13.11 mi11:24:461:22:196:174:21
6:23
+0:01
25K
15.53 mi11:40:261:37:596:1815:40
6:28
+0:05
30K
18.64 mi12:01:101:58:436:2220:44
6:40
+0:12
20M
20.00 mi12:10:262:07:596:249:16
6:49
+0:09
21M
21.00 mi12:17:382:15:116:267:12
7:12
+0:23
35K
21.75 mi12:22:262:19:596:264:48
6:25
-0:47
23M
23.00 mi12:31:042:28:376:288:38
6:54
+0:29
24M
24.00 mi12:37:472:35:206:286:43
6:43
-0:11
40K
24.85 mi12:43:522:41:256:306:05
7:07
+0:24
25.2M
25.20 mi12:46:332:44:066:312:41
7:47
+0:40
Finish
26.22 mi12:53:422:51:156:327:09
7:01
-0:46

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

6:11 /mi

Average Pace

6:32 /mi

Slowest Pace

7:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:07

51% of race

Time at Steady Pace

52:23

31% of race

Time at Slower Pace

31:45

19% of race

Average Pace: 6:32 /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 mi10:21:5619:296:1619:29
6:16
#1343
10K
6.21 mi10:41:1038:436:1419:14
6:11
#1305
15K
9.32 mi11:00:3958:126:1519:29
6:16
#1349
20K
12.43 mi11:20:251:17:586:1619:46
6:22
#1403
Half
13.11 mi11:24:461:22:196:174:21
6:23
#1436
25K
15.53 mi11:40:261:37:596:1815:40
6:28
#1529
30K
18.64 mi12:01:101:58:436:2220:44
6:40
#1621
20M
20.00 mi12:10:262:07:596:249:16
6:49
#1668
21M
21.00 mi12:17:382:15:116:267:12
7:12
#1711
35K
21.75 mi12:22:262:19:596:264:48
6:25
#1709
23M
23.00 mi12:31:042:28:376:288:38
6:54
#1773
24M
24.00 mi12:37:472:35:206:286:43
6:43
#1799
40K
24.85 mi12:43:522:41:256:306:05
7:07
#1871
25.2M
25.20 mi12:46:332:44:066:312:41
7:47
#1895
Finish
26.22 mi12:53:422:51:156:327:09
7:01
#1976
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1343127612761533(Top 6%)1463(Top 10%)1463(Top 28%)
10K6.21 mi3.10 mi1305+381240+361240+361326(Top 5%)1263(Top 8%)1263(Top 24%)
15K9.32 mi3.11 mi1349-441285-451285-451533(Top 6%)1463(Top 10%)1463(Top 28%)
20K12.43 mi3.11 mi1403-541337-521337-521647(Top 6%)1576(Top 10%)1576(Top 30%)
Half13.11 mi0.68 mi1436-331369-321369-322098(Top 8%)2014(Top 13%)2014(Top 38%)
25K15.53 mi2.42 mi1529-931461-921461-921998(Top 8%)1913(Top 13%)1913(Top 36%)
30K18.64 mi3.11 mi1621-921552-911552-912276(Top 9%)2170(Top 14%)2170(Top 41%)
20M20.00 mi1.36 mi1668-471595-431595-432905(Top 11%)2730(Top 18%)2730(Top 52%)
21M21.00 mi1.00 mi1711-431637-421637-423058(Top 11%)2862(Top 19%)2862(Top 54%)
35K21.75 mi0.75 mi1709+21636+11636+12022(Top 8%)1920(Top 13%)1920(Top 36%)
23M23.00 mi1.25 mi1773-641696-601696-603168(Top 12%)2945(Top 19%)2945(Top 56%)
24M24.00 mi1.00 mi1799-261720-241720-243165(Top 12%)2931(Top 19%)2931(Top 55%)
40K24.85 mi0.85 mi1871-721790-701790-704409(Top 17%)3910(Top 26%)3910(Top 74%)
25.2M25.20 mi0.35 mi1895-241811-211811-215185(Top 19%)4365(Top 29%)4365(Top 83%)
Finish26.22 mi1.02 mi1976-811892-811892-815266(Top 20%)4446(Top 29%)4446(Top 84%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 6%
×21stories
+97ft-345ft

Overall

1533

Males

1463

M18-39

1463

5K→10K

3.1 - 6.2 mi

Top 5%
×5stories
+79ft-138ft

Overall

1326

Males

1263

M18-39

1263

10K→15K

6.2 - 9.3 mi

Top 6%
×3stories
+67ft-78ft

Overall

1533

Males

1463

M18-39

1463

15K→20K

9.3 - 12.4 mi

Top 6%
×5stories
+106ft-86ft

Overall

1647

Males

1576

M18-39

1576

20K→Half

12.4 - 13.1 mi

Top 8%
×2stories
+19ft-37ft

Overall

2098

Males

2014

M18-39

2014

Half→25K

13.1 - 15.5 mi

Top 8%
×4stories
+66ft-88ft

Overall

1998

Males

1913

M18-39

1913

25K→30K

15.5 - 18.6 mi

Top 9%
×9stories
+181ft-148ft

Overall

2276

Males

2170

M18-39

2170

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

2905

Males

2730

M18-39

2730

20M→21M

20.0 - 21.0 mi

Top 11%
×8stories
+106ft-24ft

Overall

3058

Males

2862

M18-39

2862

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2022

Males

1920

M18-39

1920

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3168

Males

2945

M18-39

2945

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3165

Males

2931

M18-39

2931

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4409

Males

3910

M18-39

3910

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5185

Males

4365

M18-39

4365

25.2M→Finish

25.2 - 26.2 mi

Top 20%
×2stories
+22ft-21ft

Overall

5266

Males

4446

M18-39

4446

Passing Analysis

Category:
Athletes Passed
282
Passed By
915
Net Change
-633
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1343
5K → 10K9557+38#1343#1305
10K → 15K2973-44#1305#1349
15K → 20K2579-54#1349#1403
20K → Half134-33#1403#1436
Half → 25K14107-93#1436#1529
25K → 30K29121-92#1529#1621
30K → 20M1158-47#1621#1668
20M → 21M1255-43#1668#1711
21M → 35K1614+2#1711#1709
35K → 23M1377-64#1709#1773
23M → 24M1642-26#1773#1799
24M → 40K880-72#1799#1871
40K → 25.2M428-24#1871#1895
25.2M → Finish990-81#1895#1976
TOTALS282915-633
📊

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