Boston Marathon logo
BOSTON MARATHON 2023

Timothy Johnson

Bib: 23842•M

MO

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M65-69)
#0 / 549
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
9:32/mi
29:36
↑ 97↓ 3451.5%
10K· 6.21 mi
9:34/mi
59:19
↑ 79↓ 1380.4%
15K· 9.32 mi
9:51/mi
1:29:56
↑ 67↓ 78
20K· 12.43 mi
10:04/mi
2:01:12
↑ 106↓ 860.1%
Half· 13.11 mi
9:30/mi
2:07:41
↑ 19↓ 370.5%
25K· 15.53 mi
9:54/mi
2:31:42
↑ 66↓ 880.2%
30K· 18.64 mi
9:54/mi
3:02:28
↑ 181↓ 1480.2%
20M
9:58/mi
3:16:01
↑ 64↓ 500.2%
21M
10:33/mi
3:26:34
↑ 106↓ 241.6%
35K· 21.75 mi
10:27/mi
3:34:23
↑ 17↓ 861.7%
23M
9:58/mi
3:46:52
↑ 23↓ 630.6%
24M
9:40/mi
3:56:32
↓ 821.3%
40K· 24.85 mi
9:45/mi
4:04:52
↓ 200.3%
25.2M
10:32/mi
4:08:30
↑ 13↓ 160.2%
Finish· 26.22 mi
9:30/mi
4:18:11
↑ 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
Time2:07:41
Pace9:44 /mi
2nd Half
Distance13.11 mi
Time2:10:30
Pace9:57 /mi
📊Positive Split: 2.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:5629:369:3229:36
9:32
-
10K
6.21 mi11:56:3959:199:3329:43
9:34
+0:02
15K
9.32 mi12:27:161:29:569:3930:37
9:51
+0:17
20K
12.43 mi12:58:322:01:129:4531:16
10:04
+0:13
Half
13.11 mi13:05:012:07:419:446:29
9:30
-0:34
25K
15.53 mi13:29:022:31:429:4624:01
9:54
+0:24
30K
18.64 mi13:59:483:02:289:4730:46
9:54
0:00
20M
20.00 mi14:13:213:16:019:4813:33
9:58
+0:04
21M
21.00 mi14:23:543:26:349:5010:33
10:33
+0:35
35K
21.75 mi14:31:433:34:239:517:49
10:27
-0:06
23M
23.00 mi14:44:123:46:529:5212:29
9:58
-0:29
24M
24.00 mi14:53:523:56:329:519:40
9:40
-0:18
40K
24.85 mi15:02:124:04:529:518:20
9:45
+0:05
25.2M
25.20 mi15:05:504:08:309:523:38
10:32
+0:47
Finish
26.22 mi15:15:314:18:119:519:41
9:30
-1:02

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

9:30 /mi

Average Pace

9:51 /mi

Slowest Pace

10:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:56:11

91% of race

Time at Steady Pace

22:00

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:51 /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 mi11:26:5629:369:3229:36
9:32
#22170
10K
6.21 mi11:56:3959:199:3329:43
9:34
#22453
15K
9.32 mi12:27:161:29:569:3930:37
9:51
#22725
20K
12.43 mi12:58:322:01:129:4531:16
10:04
#22804
Half
13.11 mi13:05:012:07:419:446:29
9:30
#22772
25K
15.53 mi13:29:022:31:429:4624:01
9:54
#22625
30K
18.64 mi13:59:483:02:289:4730:46
9:54
#22316
20M
20.00 mi14:13:213:16:019:4813:33
9:58
#22163
21M
21.00 mi14:23:543:26:349:5010:33
10:33
#22034
35K
21.75 mi14:31:433:34:239:517:49
10:27
#22044
23M
23.00 mi14:44:123:46:529:5212:29
9:58
#21923
24M
24.00 mi14:53:523:56:329:519:40
9:40
#21833
40K
24.85 mi15:02:124:04:529:518:20
9:45
#21739
25.2M
25.20 mi15:05:504:08:309:523:38
10:32
#21709
Finish
26.22 mi15:15:314:18:119:519:41
9:30
#21654
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM65-69Seg. OverallSeg. MalesSeg. M65-69
5K3.11 mi3.11 mi22170131871318723187(Top 87%)13722(Top 90%)13722(Top 2499%)
10K6.21 mi3.10 mi22453-28313352-16513352-16522690(Top 85%)13482(Top 89%)13482(Top 2456%)
15K9.32 mi3.11 mi22725-27213505-15313505-15323187(Top 87%)13722(Top 90%)13722(Top 2499%)
20K12.43 mi3.11 mi22804-7913539-3413539-3423045(Top 87%)13653(Top 90%)13653(Top 2487%)
Half13.11 mi0.68 mi22772+3213521+1813521+1822100(Top 83%)13240(Top 87%)13240(Top 2412%)
25K15.53 mi2.42 mi22625+14713441+8013441+8022001(Top 83%)13139(Top 87%)13139(Top 2393%)
30K18.64 mi3.11 mi22316+30913278+16313278+16320756(Top 78%)12536(Top 83%)12536(Top 2283%)
20M20.00 mi1.36 mi22163+15313204+7413204+7420405(Top 77%)12306(Top 81%)12306(Top 2242%)
21M21.00 mi1.00 mi22034+12913138+6613138+6619742(Top 74%)11938(Top 79%)11938(Top 2174%)
35K21.75 mi0.75 mi22044-1013137+113137+122264(Top 84%)13041(Top 86%)13041(Top 2375%)
23M23.00 mi1.25 mi21923+12113076+6113076+6119910(Top 75%)11986(Top 79%)11986(Top 2183%)
24M24.00 mi1.00 mi21833+9013019+5713019+5719771(Top 74%)11905(Top 78%)11905(Top 2168%)
40K24.85 mi0.85 mi21739+9412960+5912960+5919182(Top 72%)11579(Top 76%)11579(Top 2109%)
25.2M25.20 mi0.35 mi21709+3012942+1812942+1819206(Top 72%)11578(Top 76%)11578(Top 2109%)
Finish26.22 mi1.02 mi21654+5512913+2912913+2920132(Top 76%)12040(Top 79%)12040(Top 2193%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23187

Males

13722

M65-69

13722

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

22690

Males

13482

M65-69

13482

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23187

Males

13722

M65-69

13722

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

23045

Males

13653

M65-69

13653

20K→Half

12.4 - 13.1 mi

Top 83%
×2story building
+19ft-37ft

Overall

22100

Males

13240

M65-69

13240

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

22001

Males

13139

M65-69

13139

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

20756

Males

12536

M65-69

12536

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

20405

Males

12306

M65-69

12306

20M→21M

20.0 - 21.0 mi

Top 74%
×8story building
+106ft-24ft

Overall

19742

Males

11938

M65-69

11938

21M→35K

21.0 - 21.8 mi

Top 84%
×7story building
+17ft-86ft

Overall

22264

Males

13041

M65-69

13041

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

19910

Males

11986

M65-69

11986

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

19771

Males

11905

M65-69

11905

24M→40K

24.0 - 24.9 mi

Top 72%
×1story
+6ft-20ft

Overall

19182

Males

11579

M65-69

11579

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

19206

Males

11578

M65-69

11578

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2story building
+22ft-21ft

Overall

20132

Males

12040

M65-69

12040

Passing Analysis

Category:
Athletes Passed
1567
Passed By
1051
Net Change
+516
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22170
5K → 10K122405-283#22170#22453
10K → 15K69341-272#22453#22725
15K → 20K106185-79#22725#22804
20K → Half419+32#22804#22772
Half → 25K17124+147#22772#22625
25K → 30K31910+309#22625#22316
30K → 20M1607+153#22316#22163
20M → 21M1389+129#22163#22034
21M → 35K2434-10#22034#22044
35K → 23M1265+121#22044#21923
23M → 24M966+90#21923#21833
24M → 40K973+94#21833#21739
40K → 25.2M366+30#21739#21709
25.2M → Finish627+55#21709#21654
TOTALS15671051+516
📊

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