Boston Marathon logo
BOSTON MARATHON 2023

Dylan Bassham

AZ

Bib: 6651 M

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 16%
Gender (Male)
#0 / 15176
Top 27%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:56/mi
21:32
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:49/mi
42:42
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:48/mi
1:03:50
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
6:50/mi
1:25:03
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
6:46/mi
1:29:40
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
6:55/mi
1:46:25
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:06/mi
2:08:27
↑ 181↓ 1480.2%
138 ft elev
20M
7:10/mi
2:18:11
↑ 64↓ 500.2%
148 ft elev
21M
7:10/mi
2:25:21
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
6:49/mi
2:30:27
↑ 17↓ 861.7%
156 ft elev
23M
7:01/mi
2:39:14
↑ 23↓ 630.6%
116 ft elev
24M
6:45/mi
2:45:59
↓ 821.3%
34 ft elev
40K· 24.85 mi
6:48/mi
2:51:48
↓ 200.3%
20 ft elev
25.2M
7:03/mi
2:54:14
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
6:15/mi
3:00:36
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Is this your race?

Claim it for a free AI report

A coach's-eye read of your race — emailed to you, free.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:40
Pace6:50 /mi
2nd Half
Distance13.11 mi
Time1:30:56
Pace6:56 /mi
📊Positive Split: 1.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:5921:326:5621:32
6:56
-
10K
6.21 mi10:46:0942:426:5221:10
6:49
-0:07
15K
9.32 mi11:07:171:03:506:5121:08
6:48
-0:01
20K
12.43 mi11:28:301:25:036:5121:13
6:50
+0:02
Half
13.11 mi11:33:071:29:406:504:37
6:46
-0:04
25K
15.53 mi11:49:521:46:256:5116:45
6:55
+0:09
30K
18.64 mi12:11:542:08:276:5322:02
7:06
+0:11
20M
20.00 mi12:21:382:18:116:559:44
7:10
+0:04
21M
21.00 mi12:28:482:25:216:557:10
7:10
0:00
35K
21.75 mi12:33:542:30:276:555:06
6:49
-0:21
23M
23.00 mi12:42:412:39:146:558:47
7:01
+0:12
24M
24.00 mi12:49:262:45:596:556:45
6:45
-0:16
40K
24.85 mi12:55:152:51:486:555:49
6:48
+0:03
25.2M
25.20 mi12:57:412:54:146:552:26
7:03
+0:15
Finish
26.22 mi13:04:033:00:366:546:22
6:15
-0:48

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

6:15 /mi

Average Pace

6:54 /mi

Slowest Pace

7:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:10

51% of race

Time at Steady Pace

1:28:26

49% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:53 /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 mi10:24:5921:326:5621:32
6:56
#5782
10K
6.21 mi10:46:0942:426:5221:10
6:49
#5599
15K
9.32 mi11:07:171:03:506:5121:08
6:48
#5455
20K
12.43 mi11:28:301:25:036:5121:13
6:50
#5263
Half
13.11 mi11:33:071:29:406:504:37
6:46
#5256
25K
15.53 mi11:49:521:46:256:5116:45
6:55
#5197
30K
18.64 mi12:11:542:08:276:5322:02
7:06
#5083
20M
20.00 mi12:21:382:18:116:559:44
7:10
#5056
21M
21.00 mi12:28:482:25:216:557:10
7:10
#4890
35K
21.75 mi12:33:542:30:276:555:06
6:49
#4846
23M
23.00 mi12:42:412:39:146:558:47
7:01
#4735
24M
24.00 mi12:49:262:45:596:556:45
6:45
#4643
40K
24.85 mi12:55:152:51:486:555:49
6:48
#4543
25.2M
25.20 mi12:57:412:54:146:552:26
7:03
#4492
Finish
26.22 mi13:04:033:00:366:546:22
6:15
#4326
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5782530653065134(Top 19%)4751(Top 31%)4751(Top 90%)
10K6.21 mi3.10 mi5599+1835157+1495157+1495404(Top 20%)4981(Top 33%)4981(Top 94%)
15K9.32 mi3.11 mi5455+1445039+1185039+1185134(Top 19%)4751(Top 31%)4751(Top 90%)
20K12.43 mi3.11 mi5263+1924877+1624877+1624702(Top 18%)4374(Top 29%)4374(Top 83%)
Half13.11 mi0.68 mi5256+74871+64871+64937(Top 19%)4569(Top 30%)4569(Top 86%)
25K15.53 mi2.42 mi5197+594815+564815+564997(Top 19%)4622(Top 30%)4622(Top 87%)
30K18.64 mi3.11 mi5083+1144710+1054710+1054869(Top 18%)4481(Top 30%)4481(Top 85%)
20M20.00 mi1.36 mi5056+274682+284682+284949(Top 19%)4496(Top 30%)4496(Top 85%)
21M21.00 mi1.00 mi4890+1664540+1424540+1422887(Top 11%)2704(Top 18%)2704(Top 51%)
35K21.75 mi0.75 mi4846+444500+404500+404291(Top 16%)3926(Top 26%)3926(Top 74%)
23M23.00 mi1.25 mi4735+1114400+1004400+1003871(Top 15%)3568(Top 24%)3568(Top 68%)
24M24.00 mi1.00 mi4643+924319+814319+813388(Top 13%)3125(Top 21%)3125(Top 59%)
40K24.85 mi0.85 mi4543+1004230+894230+892871(Top 11%)2645(Top 17%)2645(Top 50%)
25.2M25.20 mi0.35 mi4492+514185+454185+451989(Top 7%)1872(Top 12%)1872(Top 35%)
Finish26.22 mi1.02 mi4326+1664036+1494036+1491454(Top 5%)1377(Top 9%)1377(Top 26%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21story building
+97ft-345ft

Overall

5134

Males

4751

M18-39

4751

5K→10K

3.1 - 6.2 mi

Top 20%
×5story building
+79ft-138ft

Overall

5404

Males

4981

M18-39

4981

10K→15K

6.2 - 9.3 mi

Top 19%
×3story building
+67ft-78ft

Overall

5134

Males

4751

M18-39

4751

15K→20K

9.3 - 12.4 mi

Top 18%
×5story building
+106ft-86ft

Overall

4702

Males

4374

M18-39

4374

20K→Half

12.4 - 13.1 mi

Top 19%
×2story building
+19ft-37ft

Overall

4937

Males

4569

M18-39

4569

Half→25K

13.1 - 15.5 mi

Top 19%
×4story building
+66ft-88ft

Overall

4997

Males

4622

M18-39

4622

25K→30K

15.5 - 18.6 mi

Top 18%
×9story building
+181ft-148ft

Overall

4869

Males

4481

M18-39

4481

30K→20M

18.6 - 20.0 mi

Top 19%
×5story building
+64ft-50ft

Overall

4949

Males

4496

M18-39

4496

20M→21M

20.0 - 21.0 mi

Top 11%
×8story building
+106ft-24ft

Overall

2887

Males

2704

M18-39

2704

21M→35K

21.0 - 21.8 mi

Top 16%
×7story building
+17ft-86ft

Overall

4291

Males

3926

M18-39

3926

35K→23M

21.8 - 23.0 mi

Top 15%
×5story building
+23ft-63ft

Overall

3871

Males

3568

M18-39

3568

23M→24M

23.0 - 24.0 mi

Top 13%
×6story building
+12ft-82ft

Overall

3388

Males

3125

M18-39

3125

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2871

Males

2645

M18-39

2645

40K→25.2M

24.9 - 25.2 mi

Top 7%
×1story
+13ft-16ft

Overall

1989

Males

1872

M18-39

1872

25.2M→Finish

25.2 - 26.2 mi

Top 5%
×2story building
+22ft-21ft

Overall

1454

Males

1377

M18-39

1377

Passing Analysis

Category:
Athletes Passed
1931
Passed By
475
Net Change
+1456
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5782
5K → 10K305122+183#5782#5599
10K → 15K20359+144#5599#5455
15K → 20K21523+192#5455#5263
20K → Half2518+7#5263#5256
Half → 25K12263+59#5256#5197
25K → 30K19076+114#5197#5083
30K → 20M8154+27#5083#5056
20M → 21M1759+166#5056#4890
21M → 35K5915+44#4890#4846
35K → 23M12918+111#4846#4735
23M → 24M1019+92#4735#4643
24M → 40K1066+100#4643#4543
40K → 25.2M543+51#4543#4492
25.2M → Finish1660+166#4492#4326
TOTALS1931475+1456
📊

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

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing