Boston Marathon logo
BOSTON MARATHON 2023

Adam Walker

Bib: 6618•M

LA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 19%
Gender (Male)
#0 / 15176
Top 31%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
6:46/mi
21:01
↑ 97↓ 3451.5%
10K· 6.21 mi
6:48/mi
42:08
↑ 79↓ 1380.4%
15K· 9.32 mi
6:50/mi
1:03:21
↑ 67↓ 78
20K· 12.43 mi
6:51/mi
1:24:39
↑ 106↓ 860.1%
Half· 13.11 mi
6:46/mi
1:29:16
↑ 19↓ 370.5%
25K· 15.53 mi
6:54/mi
1:46:00
↑ 66↓ 880.2%
30K· 18.64 mi
7:02/mi
2:07:51
↑ 181↓ 1480.2%
20M
7:02/mi
2:17:24
↑ 64↓ 500.2%
21M
7:46/mi
2:25:10
↑ 106↓ 241.6%
35K· 21.75 mi
6:49/mi
2:30:16
↑ 17↓ 861.7%
23M
7:25/mi
2:39:33
↑ 23↓ 630.6%
24M
7:35/mi
2:47:08
↓ 821.3%
40K· 24.85 mi
8:39/mi
2:54:32
↓ 200.3%
25.2M
8:33/mi
2:57:29
↑ 13↓ 160.2%
Finish· 26.22 mi
6:56/mi
3:04:33
↑ 22↓ 21

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
Time1:29:16
Pace6:49 /mi
2nd Half
Distance13.11 mi
Time1:35:17
Pace7:16 /mi
📊Positive Split: 6.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:24:4421:016:4621:01
6:46
-
10K
6.21 mi10:45:5142:086:4721:07
6:48
+0:02
15K
9.32 mi11:07:041:03:216:4821:13
6:50
+0:02
20K
12.43 mi11:28:221:24:396:4921:18
6:51
+0:01
Half
13.11 mi11:32:591:29:166:494:37
6:46
-0:05
25K
15.53 mi11:49:431:46:006:4916:44
6:54
+0:08
30K
18.64 mi12:11:342:07:516:5221:51
7:02
+0:08
20M
20.00 mi12:21:072:17:246:529:33
7:02
0:00
21M
21.00 mi12:28:532:25:106:557:46
7:46
+0:44
35K
21.75 mi12:33:592:30:166:555:06
6:49
-0:57
23M
23.00 mi12:43:162:39:336:569:17
7:25
+0:36
24M
24.00 mi12:50:512:47:086:587:35
7:35
+0:10
40K
24.85 mi12:58:152:54:327:017:24
8:39
+1:04
25.2M
25.20 mi13:01:122:57:297:032:57
8:33
-0:06
Finish
26.22 mi13:08:163:04:337:037:04
6:56
-1:37

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

6:46 /mi

Average Pace

7:03 /mi

Slowest Pace

8:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:29:34

81% of race

Time at Slower Pace

34:59

19% of race

Average Pace: 7:02 /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 mi10:24:4421:016:4621:01
6:46
#4316
10K
6.21 mi10:45:5142:086:4721:07
6:48
#4803
15K
9.32 mi11:07:041:03:216:4821:13
6:50
#4975
20K
12.43 mi11:28:221:24:396:4921:18
6:51
#4948
Half
13.11 mi11:32:591:29:166:494:37
6:46
#4949
25K
15.53 mi11:49:431:46:006:4916:44
6:54
#4931
30K
18.64 mi12:11:342:07:516:5221:51
7:02
#4826
20M
20.00 mi12:21:072:17:246:529:33
7:02
#4758
21M
21.00 mi12:28:532:25:106:557:46
7:46
#4825
35K
21.75 mi12:33:592:30:166:555:06
6:49
#4783
23M
23.00 mi12:43:162:39:336:569:17
7:25
#4835
24M
24.00 mi12:50:512:47:086:587:35
7:35
#4946
40K
24.85 mi12:58:152:54:327:017:24
8:39
#5179
25.2M
25.20 mi13:01:122:57:297:032:57
8:33
#5223
Finish
26.22 mi13:08:163:04:337:037:04
6:56
#5161
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4316403440345378(Top 20%)4963(Top 33%)4963(Top 94%)
10K6.21 mi3.10 mi4803-4874466-4324466-4325274(Top 20%)4876(Top 32%)4876(Top 92%)
15K9.32 mi3.11 mi4975-1724619-1534619-1535378(Top 20%)4963(Top 33%)4963(Top 94%)
20K12.43 mi3.11 mi4948+274607+124607+124965(Top 19%)4607(Top 30%)4607(Top 87%)
Half13.11 mi0.68 mi4949-14604+34604+35000(Top 19%)4632(Top 31%)4632(Top 88%)
25K15.53 mi2.42 mi4931+184584+204584+204973(Top 19%)4602(Top 30%)4602(Top 87%)
30K18.64 mi3.11 mi4826+1054490+944490+944572(Top 17%)4234(Top 28%)4234(Top 80%)
20M20.00 mi1.36 mi4758+684427+634427+634216(Top 16%)3895(Top 26%)3895(Top 74%)
21M21.00 mi1.00 mi4825-674482-554482-555968(Top 22%)5166(Top 34%)5166(Top 98%)
35K21.75 mi0.75 mi4783+424445+374445+374324(Top 16%)3959(Top 26%)3959(Top 75%)
23M23.00 mi1.25 mi4835-524486-414486-415920(Top 22%)5127(Top 34%)5127(Top 97%)
24M24.00 mi1.00 mi4946-1114560-744560-748230(Top 31%)6435(Top 42%)6435(Top 122%)
40K24.85 mi0.85 mi5179-2334750-1904750-19014224(Top 53%)9323(Top 61%)9323(Top 176%)
25.2M25.20 mi0.35 mi5223-444785-354785-359743(Top 37%)7129(Top 47%)7129(Top 135%)
Finish26.22 mi1.02 mi5161+624727+584727+584817(Top 18%)4140(Top 27%)4140(Top 78%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21story building
+97ft-345ft

Overall

5378

Males

4963

M18-39

4963

5K→10K

3.1 - 6.2 mi

Top 20%
×5story building
+79ft-138ft

Overall

5274

Males

4876

M18-39

4876

10K→15K

6.2 - 9.3 mi

Top 20%
×3story building
+67ft-78ft

Overall

5378

Males

4963

M18-39

4963

15K→20K

9.3 - 12.4 mi

Top 19%
×5story building
+106ft-86ft

Overall

4965

Males

4607

M18-39

4607

20K→Half

12.4 - 13.1 mi

Top 19%
×2story building
+19ft-37ft

Overall

5000

Males

4632

M18-39

4632

Half→25K

13.1 - 15.5 mi

Top 19%
×4story building
+66ft-88ft

Overall

4973

Males

4602

M18-39

4602

25K→30K

15.5 - 18.6 mi

Top 17%
×9story building
+181ft-148ft

Overall

4572

Males

4234

M18-39

4234

30K→20M

18.6 - 20.0 mi

Top 16%
×5story building
+64ft-50ft

Overall

4216

Males

3895

M18-39

3895

20M→21M

20.0 - 21.0 mi

Top 22%
×8story building
+106ft-24ft

Overall

5968

Males

5166

M18-39

5166

21M→35K

21.0 - 21.8 mi

Top 16%
×7story building
+17ft-86ft

Overall

4324

Males

3959

M18-39

3959

35K→23M

21.8 - 23.0 mi

Top 22%
×5story building
+23ft-63ft

Overall

5920

Males

5127

M18-39

5127

23M→24M

23.0 - 24.0 mi

Top 31%
×6story building
+12ft-82ft

Overall

8230

Males

6435

M18-39

6435

24M→40K

24.0 - 24.9 mi

Top 53%
×1story
+6ft-20ft

Overall

14224

Males

9323

M18-39

9323

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1story
+13ft-16ft

Overall

9743

Males

7129

M18-39

7129

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

4817

Males

4140

M18-39

4140

Passing Analysis

Category:
Athletes Passed
945
Passed By
1790
Net Change
-845
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4316
5K → 10K66553-487#4316#4803
10K → 15K60232-172#4803#4975
15K → 20K11689+27#4975#4948
20K → Half1920-1#4948#4949
Half → 25K11395+18#4949#4931
25K → 30K19287+105#4931#4826
30K → 20M9830+68#4826#4758
20M → 21M33100-67#4758#4825
21M → 35K6725+42#4825#4783
35K → 23M58110-52#4783#4835
23M → 24M21132-111#4835#4946
24M → 40K8241-233#4946#5179
40K → 25.2M1054-44#5179#5223
25.2M → Finish8422+62#5223#5161
TOTALS9451790-845
📊

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