Boston Marathon logo
BOSTON MARATHON 2023

Tyler Macdonald

Bib: 1613•M

ON

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Top 9%
Gender (Male)
#0 / 15176
Top 16%
Division (M18-39)
#0 / 5285
Top 35%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:10
Rank: #458
Start → 5K
18:10 | 5:51/mi
10K· 6.21 mi
36:24
Rank: #481 (-23)
5K → 10K
18:14 | 5:52/mi
15K· 9.32 mi
55:18
Rank: #592 (-111)
10K → 15K
18:54 | 6:05/mi
20K· 12.43 mi
1:16:03
Rank: #963 (-371)
15K → 20K
20:45 | 6:41/mi
Half· 13.11 mi
1:20:21
Rank: #993 (-30)
20K → Half
4:18 | 6:18/mi
25K· 15.53 mi
1:36:52
Rank: #1234 (-241)
Half → 25K
16:31 | 6:49/mi
30K· 18.64 mi
1:59:02
Rank: #1678 (-444)
25K → 30K
22:10 | 7:08/mi
20M
2:08:53
Rank: #1879 (-201)
30K → 20M
9:51 | 7:15/mi
21M
2:16:31
Rank: #2015 (-136)
20M → 21M
7:38 | 7:38/mi
35K· 21.75 mi
2:21:46
Rank: #2103 (-88)
21M → 35K
5:15 | 7:01/mi
23M
2:31:23
Rank: #2329 (-226)
35K → 23M
9:37 | 7:41/mi
24M
2:38:37
Rank: #2418 (-89)
23M → 24M
7:14 | 7:14/mi
40K· 24.85 mi
2:44:50
Rank: #2483 (-65)
24M → 40K
6:13 | 7:16/mi
25.2M
2:47:23
Rank: #2488 (-5)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:54:05
Rank: #2490 (-2)
25.2M → Finish
6:42 | 6:34/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
Time1:20:21
Pace6:08 /mi
2nd Half
Distance13.11 mi
Time1:33:44
Pace7:09 /mi
📊Positive Split: 16.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:18:2918:105:5118:10
5:51
-
10K
6.21 mi10:36:4336:245:5118:14
5:52
+0:01
15K
9.32 mi10:55:3755:185:5618:54
6:05
+0:13
20K
12.43 mi11:16:221:16:036:0720:45
6:41
+0:36
Half
13.11 mi11:20:401:20:216:084:18
6:18
-0:23
25K
15.53 mi11:37:111:36:526:1416:31
6:49
+0:31
30K
18.64 mi11:59:211:59:026:2322:10
7:08
+0:19
20M
20.00 mi12:09:122:08:536:279:51
7:15
+0:07
21M
21.00 mi12:16:502:16:316:307:38
7:38
+0:23
35K
21.75 mi12:22:052:21:466:315:15
7:01
-0:37
23M
23.00 mi12:31:422:31:236:359:37
7:41
+0:40
24M
24.00 mi12:38:562:38:376:377:14
7:14
-0:27
40K
24.85 mi12:45:092:44:506:386:13
7:16
+0:02
25.2M
25.20 mi12:47:422:47:236:392:33
7:24
+0:08
Finish
26.22 mi12:54:242:54:056:396:42
6:34
-0:50

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

5:51 /mi

Average Pace

6:39 /mi

Slowest Pace

7:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:03

50% of race

Time at Steady Pace

1:07:14

39% of race

Time at Slower Pace

19:48

11% of race

Average Pace: 6:38 /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 mi10:18:2918:105:5118:10
5:51
#458
10K
6.21 mi10:36:4336:245:5118:14
5:52
#481
15K
9.32 mi10:55:3755:185:5618:54
6:05
#592
20K
12.43 mi11:16:221:16:036:0720:45
6:41
#963
Half
13.11 mi11:20:401:20:216:084:18
6:18
#993
25K
15.53 mi11:37:111:36:526:1416:31
6:49
#1234
30K
18.64 mi11:59:211:59:026:2322:10
7:08
#1678
20M
20.00 mi12:09:122:08:536:279:51
7:15
#1879
21M
21.00 mi12:16:502:16:316:307:38
7:38
#2015
35K
21.75 mi12:22:052:21:466:315:15
7:01
#2103
23M
23.00 mi12:31:422:31:236:359:37
7:41
#2329
24M
24.00 mi12:38:562:38:376:377:14
7:14
#2418
40K
24.85 mi12:45:092:44:506:386:13
7:16
#2483
25.2M
25.20 mi12:47:422:47:236:392:33
7:24
#2488
Finish
26.22 mi12:54:242:54:056:396:42
6:34
#2490
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi458423423928(Top 3%)880(Top 6%)880(Top 17%)
10K6.21 mi3.10 mi481-23445-22445-22541(Top 2%)499(Top 3%)499(Top 9%)
15K9.32 mi3.11 mi592-111549-104549-104928(Top 3%)880(Top 6%)880(Top 17%)
20K12.43 mi3.11 mi963-371914-365914-3653379(Top 13%)3202(Top 21%)3202(Top 61%)
Half13.11 mi0.68 mi993-30943-29943-291818(Top 7%)1747(Top 12%)1747(Top 33%)
25K15.53 mi2.42 mi1234-2411179-2361179-2364236(Top 16%)3961(Top 26%)3961(Top 75%)
30K18.64 mi3.11 mi1678-4441603-4241603-4245099(Top 19%)4678(Top 31%)4678(Top 89%)
20M20.00 mi1.36 mi1879-2011797-1941797-1945332(Top 20%)4794(Top 32%)4794(Top 91%)
21M21.00 mi1.00 mi2015-1361930-1331930-1335234(Top 20%)4630(Top 31%)4630(Top 88%)
35K21.75 mi0.75 mi2103-882016-862016-865378(Top 20%)4774(Top 31%)4774(Top 90%)
23M23.00 mi1.25 mi2329-2262231-2152231-2157590(Top 29%)6166(Top 41%)6166(Top 117%)
24M24.00 mi1.00 mi2418-892314-832314-835893(Top 22%)5023(Top 33%)5023(Top 95%)
40K24.85 mi0.85 mi2483-652372-582372-585216(Top 20%)4477(Top 30%)4477(Top 85%)
25.2M25.20 mi0.35 mi2488-52374-22374-23329(Top 13%)3012(Top 20%)3012(Top 57%)
Finish26.22 mi1.02 mi2490-22377-32377-32840(Top 11%)2577(Top 17%)2577(Top 49%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 3%
×21stories
+97ft-345ft

Overall

928

Males

880

M18-39

880

5K→10K

3.1 - 6.2 mi

Top 2%
×5stories
+79ft-138ft

Overall

541

Males

499

M18-39

499

10K→15K

6.2 - 9.3 mi

Top 3%
×3stories
+67ft-78ft

Overall

928

Males

880

M18-39

880

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3379

Males

3202

M18-39

3202

20K→Half

12.4 - 13.1 mi

Top 7%
×2stories
+19ft-37ft

Overall

1818

Males

1747

M18-39

1747

Half→25K

13.1 - 15.5 mi

Top 16%
×4stories
+66ft-88ft

Overall

4236

Males

3961

M18-39

3961

25K→30K

15.5 - 18.6 mi

Top 19%
×9stories
+181ft-148ft

Overall

5099

Males

4678

M18-39

4678

30K→20M

18.6 - 20.0 mi

Top 20%
×5stories
+64ft-50ft

Overall

5332

Males

4794

M18-39

4794

20M→21M

20.0 - 21.0 mi

Top 20%
×8stories
+106ft-24ft

Overall

5234

Males

4630

M18-39

4630

21M→35K

21.0 - 21.8 mi

Top 20%
×7stories
+17ft-86ft

Overall

5378

Males

4774

M18-39

4774

35K→23M

21.8 - 23.0 mi

Top 29%
×5stories
+23ft-63ft

Overall

7590

Males

6166

M18-39

6166

23M→24M

23.0 - 24.0 mi

Top 22%
×6stories
+12ft-82ft

Overall

5893

Males

5023

M18-39

5023

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5216

Males

4477

M18-39

4477

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3329

Males

3012

M18-39

3012

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

2840

Males

2577

M18-39

2577

Passing Analysis

Category:
Athletes Passed
116
Passed By
2148
Net Change
-2032
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#458
5K → 10K1639-23#458#481
10K → 15K3114-111#481#592
15K → 20K0371-371#592#963
20K → Half030-30#963#993
Half → 25K2243-241#993#1234
25K → 30K4448-444#1234#1678
30K → 20M5206-201#1678#1879
20M → 21M6142-136#1879#2015
21M → 35K391-88#2015#2103
35K → 23M5231-226#2103#2329
23M → 24M998-89#2329#2418
24M → 40K1277-65#2418#2483
40K → 25.2M1318-5#2483#2488
25.2M → Finish3840-2#2488#2490
TOTALS1162148-2032
📊

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