Boston Marathon logo
BOSTON MARATHON 2023

Jonathan Bernard

Bib: 26984•M

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
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
11:40/mi
36:14
↑ 97↓ 3451.5%
10K· 6.21 mi
11:40/mi
1:12:27
↑ 79↓ 1380.4%
15K· 9.32 mi
12:28/mi
1:51:12
↑ 67↓ 78
20K· 12.43 mi
12:44/mi
2:30:45
↑ 106↓ 860.1%
Half· 13.11 mi
12:44/mi
2:39:26
↑ 19↓ 370.5%
25K· 15.53 mi
13:14/mi
3:11:30
↑ 66↓ 880.2%
30K· 18.64 mi
14:28/mi
3:56:26
↑ 181↓ 1480.2%
20M
15:06/mi
4:16:57
↑ 64↓ 500.2%
21M
15:06/mi
4:32:02
↑ 106↓ 241.6%
35K· 21.75 mi
11:54/mi
4:40:56
↑ 17↓ 861.7%
23M
13:23/mi
4:57:41
↑ 23↓ 630.6%
24M
12:48/mi
5:10:29
↓ 821.3%
40K· 24.85 mi
14:29/mi
5:22:52
↓ 200.3%
25.2M
16:23/mi
5:28:31
↑ 13↓ 160.2%
Finish· 26.22 mi
12:15/mi
5:41:00
↑ 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
Time2:39:26
Pace12:10 /mi
2nd Half
Distance13.11 mi
Time3:01:34
Pace13:51 /mi
📊Positive Split: 13.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:56:1736:1411:4036:14
11:40
-
10K
6.21 mi12:32:301:12:2711:4036:14
11:40
0:00
15K
9.32 mi13:11:151:51:1211:5638:45
12:28
+0:48
20K
12.43 mi13:50:482:30:4512:0839:33
12:44
+0:16
Half
13.11 mi13:59:292:39:2612:108:41
12:44
0:00
25K
15.53 mi14:31:333:11:3012:2032:04
13:14
+0:30
30K
18.64 mi15:16:293:56:2612:4144:56
14:28
+1:14
20M
20.00 mi15:37:004:16:5712:5120:31
15:06
+0:38
21M
21.00 mi15:52:054:32:0212:5715:05
15:06
0:00
35K
21.75 mi16:00:594:40:5612:558:54
11:54
-3:12
23M
23.00 mi16:17:444:57:4112:5716:45
13:23
+1:29
24M
24.00 mi16:30:325:10:2912:5612:48
12:48
-0:35
40K
24.85 mi16:42:555:22:5212:5912:23
14:29
+1:41
25.2M
25.20 mi16:48:345:28:3113:025:39
16:23
+1:54
Finish
26.22 mi17:01:035:41:0013:0112:29
12:15
-4:08

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

11:40 /mi

Average Pace

13:01 /mi

Slowest Pace

16:23 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:21

24% of race

Time at Steady Pace

2:41:05

47% of race

Time at Slower Pace

1:38:34

29% of race

Average Pace: 13:00 /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 mi11:56:1736:1411:4036:14
11:40
#26304
10K
6.21 mi12:32:301:12:2711:4036:14
11:40
#26203
15K
9.32 mi13:11:151:51:1211:5638:45
12:28
#26255
20K
12.43 mi13:50:482:30:4512:0839:33
12:44
#26222
Half
13.11 mi13:59:292:39:2612:108:41
12:44
#26230
25K
15.53 mi14:31:333:11:3012:2032:04
13:14
#26222
30K
18.64 mi15:16:293:56:2612:4144:56
14:28
#26238
20M
20.00 mi15:37:004:16:5712:5120:31
15:06
#26259
21M
21.00 mi15:52:054:32:0212:5715:05
15:06
#26244
35K
21.75 mi16:00:594:40:5612:558:54
11:54
#26202
23M
23.00 mi16:17:444:57:4112:5716:45
13:23
#26178
24M
24.00 mi16:30:325:10:2912:5612:48
12:48
#26159
40K
24.85 mi16:42:555:22:5212:5912:23
14:29
#26159
25.2M
25.20 mi16:48:345:28:3113:025:39
16:23
#26169
Finish
26.22 mi17:01:035:41:0013:0112:29
12:15
#26156
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 mi26304150491504926310(Top 99%)15049(Top 99%)15049(Top 285%)
10K6.21 mi3.10 mi26203+10115012+3715012+3726077(Top 98%)14963(Top 99%)14963(Top 283%)
15K9.32 mi3.11 mi26255-5215030-1815030-1826310(Top 99%)15049(Top 99%)15049(Top 285%)
20K12.43 mi3.11 mi26222+3315018+1215018+1226100(Top 98%)14965(Top 99%)14965(Top 283%)
Half13.11 mi0.68 mi26230-815025-715025-726263(Top 99%)15019(Top 99%)15019(Top 284%)
25K15.53 mi2.42 mi26222+815021+415021+425981(Top 98%)14888(Top 98%)14888(Top 282%)
30K18.64 mi3.11 mi26238-1615027-615027-626227(Top 99%)14990(Top 99%)14990(Top 284%)
20M20.00 mi1.36 mi26259-2115028-115028-126321(Top 99%)15007(Top 99%)15007(Top 284%)
21M21.00 mi1.00 mi26244+1515018+1015018+1025779(Top 97%)14762(Top 97%)14762(Top 279%)
35K21.75 mi0.75 mi26202+4214997+2114997+2124578(Top 92%)14116(Top 93%)14116(Top 267%)
23M23.00 mi1.25 mi26178+2414982+1514982+1525427(Top 96%)14549(Top 96%)14549(Top 275%)
24M24.00 mi1.00 mi26159+1914974+814974+825335(Top 95%)14470(Top 95%)14470(Top 274%)
40K24.85 mi0.85 mi2615914975-114975-125940(Top 97%)14770(Top 97%)14770(Top 279%)
25.2M25.20 mi0.35 mi26169-1014979-414979-426229(Top 99%)14939(Top 98%)14939(Top 283%)
Finish26.22 mi1.02 mi26156+1314968+1114968+1125466(Top 96%)14549(Top 96%)14549(Top 275%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21story building
+97ft-345ft

Overall

26310

Males

15049

M18-39

15049

5K→10K

3.1 - 6.2 mi

Top 98%
×5story building
+79ft-138ft

Overall

26077

Males

14963

M18-39

14963

10K→15K

6.2 - 9.3 mi

Top 99%
×3story building
+67ft-78ft

Overall

26310

Males

15049

M18-39

15049

15K→20K

9.3 - 12.4 mi

Top 98%
×5story building
+106ft-86ft

Overall

26100

Males

14965

M18-39

14965

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

26263

Males

15019

M18-39

15019

Half→25K

13.1 - 15.5 mi

Top 98%
×4story building
+66ft-88ft

Overall

25981

Males

14888

M18-39

14888

25K→30K

15.5 - 18.6 mi

Top 99%
×9story building
+181ft-148ft

Overall

26227

Males

14990

M18-39

14990

30K→20M

18.6 - 20.0 mi

Top 99%
×5story building
+64ft-50ft

Overall

26321

Males

15007

M18-39

15007

20M→21M

20.0 - 21.0 mi

Top 97%
×8story building
+106ft-24ft

Overall

25779

Males

14762

M18-39

14762

21M→35K

21.0 - 21.8 mi

Top 92%
×7story building
+17ft-86ft

Overall

24578

Males

14116

M18-39

14116

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

25427

Males

14549

M18-39

14549

23M→24M

23.0 - 24.0 mi

Top 95%
×6story building
+12ft-82ft

Overall

25335

Males

14470

M18-39

14470

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

25940

Males

14770

M18-39

14770

40K→25.2M

24.9 - 25.2 mi

Top 99%
×1story
+13ft-16ft

Overall

26229

Males

14939

M18-39

14939

25.2M→Finish

25.2 - 26.2 mi

Top 96%
×2story building
+22ft-21ft

Overall

25466

Males

14549

M18-39

14549

Passing Analysis

Category:
Athletes Passed
451
Passed By
303
Net Change
+148
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26304
5K → 10K12221+101#26304#26203
10K → 15K3082-52#26203#26255
15K → 20K6027+33#26255#26222
20K → Half614-8#26222#26230
Half → 25K3123+8#26230#26222
25K → 30K3349-16#26222#26238
30K → 20M1435-21#26238#26259
20M → 21M2611+15#26259#26244
21M → 35K442+42#26244#26202
35K → 23M295+24#26202#26178
23M → 24M212+19#26178#26159
24M → 40K16160#26159#26159
40K → 25.2M313-10#26159#26169
25.2M → Finish163+13#26169#26156
TOTALS451303+148
📊

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