Boston Marathon logo
BOSTON MARATHON 2023

Dana Macdonald

Bib: 11009•M

ON

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Top 36%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 40%
Division (M50-54)
#0 / 2052
Top 38%
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
7:34/mi
23:30
↑ 97↓ 3451.5%
10K· 6.21 mi
7:29/mi
46:45
↑ 79↓ 1380.4%
15K· 9.32 mi
7:33/mi
1:10:11
↑ 67↓ 78
20K· 12.43 mi
7:38/mi
1:33:54
↑ 106↓ 860.1%
Half· 13.11 mi
7:33/mi
1:39:03
↑ 19↓ 370.5%
25K· 15.53 mi
7:40/mi
1:57:39
↑ 66↓ 880.2%
30K· 18.64 mi
7:47/mi
2:21:50
↑ 181↓ 1480.2%
20M
7:55/mi
2:32:35
↑ 64↓ 500.2%
21M
8:10/mi
2:40:45
↑ 106↓ 241.6%
35K· 21.75 mi
7:42/mi
2:46:31
↑ 17↓ 861.7%
23M
7:56/mi
2:56:27
↑ 23↓ 630.6%
24M
7:41/mi
3:04:08
↓ 821.3%
40K· 24.85 mi
7:42/mi
3:10:43
↓ 200.3%
25.2M
8:27/mi
3:13:38
↑ 13↓ 160.2%
Finish· 26.22 mi
7:57/mi
3:21:44
↑ 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
Time1:39:03
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:42:41
Pace7:50 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:50:5023:307:3423:30
7:34
-
10K
6.21 mi11:14:0546:457:3123:15
7:29
-0:05
15K
9.32 mi11:37:311:10:117:3223:26
7:33
+0:04
20K
12.43 mi12:01:141:33:547:3323:43
7:38
+0:05
Half
13.11 mi12:06:231:39:037:335:09
7:33
-0:05
25K
15.53 mi12:24:591:57:397:3418:36
7:40
+0:07
30K
18.64 mi12:49:102:21:507:3724:11
7:47
+0:07
20M
20.00 mi12:59:552:32:357:3810:45
7:55
+0:08
21M
21.00 mi13:08:052:40:457:398:10
8:10
+0:15
35K
21.75 mi13:13:512:46:317:395:46
7:42
-0:28
23M
23.00 mi13:23:472:56:277:409:56
7:56
+0:14
24M
24.00 mi13:31:283:04:087:407:41
7:41
-0:15
40K
24.85 mi13:38:033:10:437:406:35
7:42
+0:01
25.2M
25.20 mi13:40:583:13:387:412:55
8:27
+0:45
Finish
26.22 mi13:49:043:21:447:428:06
7:57
-0:30

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

7:29 /mi

Average Pace

7:42 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:18:49

99% of race

Time at Steady Pace

2:55

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:42 /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 mi10:50:5023:307:3423:30
7:34
#10190
10K
6.21 mi11:14:0546:457:3123:15
7:29
#10250
15K
9.32 mi11:37:311:10:117:3223:26
7:33
#10322
20K
12.43 mi12:01:141:33:547:3323:43
7:38
#10314
Half
13.11 mi12:06:231:39:037:335:09
7:33
#10322
25K
15.53 mi12:24:591:57:397:3418:36
7:40
#10260
30K
18.64 mi12:49:102:21:507:3724:11
7:47
#10033
20M
20.00 mi12:59:552:32:357:3810:45
7:55
#9973
21M
21.00 mi13:08:052:40:457:398:10
8:10
#9848
35K
21.75 mi13:13:512:46:317:395:46
7:42
#9848
23M
23.00 mi13:23:472:56:277:409:56
7:56
#9786
24M
24.00 mi13:31:283:04:087:407:41
7:41
#9703
40K
24.85 mi13:38:033:10:437:406:35
7:42
#9609
25.2M
25.20 mi13:40:583:13:387:412:55
8:27
#9586
Finish
26.22 mi13:49:043:21:447:428:06
7:57
#9653
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi101908230823010517(Top 40%)8415(Top 55%)8415(Top 410%)
10K6.21 mi3.10 mi10250-608286-568286-5610306(Top 39%)8330(Top 55%)8330(Top 406%)
15K9.32 mi3.11 mi10322-728340-548340-5410517(Top 40%)8415(Top 55%)8415(Top 410%)
20K12.43 mi3.11 mi10314+88319+218319+2110336(Top 39%)8253(Top 54%)8253(Top 402%)
Half13.11 mi0.68 mi10322-88320-18320-110539(Top 40%)8361(Top 55%)8361(Top 407%)
25K15.53 mi2.42 mi10260+628267+538267+5310060(Top 38%)8018(Top 53%)8018(Top 391%)
30K18.64 mi3.11 mi10033+2278114+1538114+1539228(Top 35%)7411(Top 49%)7411(Top 361%)
20M20.00 mi1.36 mi9973+608054+608054+609614(Top 36%)7530(Top 50%)7530(Top 367%)
21M21.00 mi1.00 mi9848+1257957+977957+978415(Top 32%)6721(Top 44%)6721(Top 328%)
35K21.75 mi0.75 mi98487940+177940+179954(Top 37%)7608(Top 50%)7608(Top 371%)
23M23.00 mi1.25 mi9786+627868+727868+729280(Top 35%)7112(Top 47%)7112(Top 347%)
24M24.00 mi1.00 mi9703+837800+687800+688956(Top 34%)6870(Top 45%)6870(Top 335%)
40K24.85 mi0.85 mi9609+947723+777723+777977(Top 30%)6240(Top 41%)6240(Top 304%)
25.2M25.20 mi0.35 mi9586+237697+267697+269203(Top 35%)6863(Top 45%)6863(Top 334%)
Finish26.22 mi1.02 mi9653-677701-47701-411706(Top 44%)8139(Top 54%)8139(Top 397%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

10517

Males

8415

M50-54

8415

5K→10K

3.1 - 6.2 mi

Top 39%
×5story building
+79ft-138ft

Overall

10306

Males

8330

M50-54

8330

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

10517

Males

8415

M50-54

8415

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10336

Males

8253

M50-54

8253

20K→Half

12.4 - 13.1 mi

Top 40%
×2story building
+19ft-37ft

Overall

10539

Males

8361

M50-54

8361

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10060

Males

8018

M50-54

8018

25K→30K

15.5 - 18.6 mi

Top 35%
×9story building
+181ft-148ft

Overall

9228

Males

7411

M50-54

7411

30K→20M

18.6 - 20.0 mi

Top 36%
×5story building
+64ft-50ft

Overall

9614

Males

7530

M50-54

7530

20M→21M

20.0 - 21.0 mi

Top 32%
×8story building
+106ft-24ft

Overall

8415

Males

6721

M50-54

6721

21M→35K

21.0 - 21.8 mi

Top 37%
×7story building
+17ft-86ft

Overall

9954

Males

7608

M50-54

7608

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9280

Males

7112

M50-54

7112

23M→24M

23.0 - 24.0 mi

Top 34%
×6story building
+12ft-82ft

Overall

8956

Males

6870

M50-54

6870

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

7977

Males

6240

M50-54

6240

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

9203

Males

6863

M50-54

6863

25.2M→Finish

25.2 - 26.2 mi

Top 44%
×2story building
+22ft-21ft

Overall

11706

Males

8139

M50-54

8139

Passing Analysis

Category:
Athletes Passed
1784*
Passed By
1247
Net Change
+537
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10190
5K → 10K277*337-60#10190#10250
10K → 15K141213-72#10250#10322
15K → 20K160*152+8#10322#10314
20K → Half2230-8#10314#10322
Half → 25K168106+62#10322#10260
25K → 30K280*53+227#10260#10033
30K → 20M120*60+60#10033#9973
20M → 21M15025+125#9973#9848
21M → 35K45450#9848#9848
35K → 23M11654+62#9848#9786
23M → 24M10017+83#9786#9703
24M → 40K109*15+94#9703#9609
40K → 25.2M4825+23#9609#9586
25.2M → Finish48115-67#9586#9653
TOTALS1784*1247+537

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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