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BOSTON MARATHON 2023

Jon Newsom

Bib: 13770•M

OH

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 43%
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Top 48%
Division (M45-49)
#0 / 2252
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
7:25/mi
23:04
↑ 97↓ 3451.5%
10K· 6.21 mi
7:36/mi
46:41
↑ 79↓ 1380.4%
15K· 9.32 mi
7:27/mi
1:09:50
↑ 67↓ 78
20K· 12.43 mi
7:40/mi
1:33:39
↑ 106↓ 860.1%
Half· 13.11 mi
7:43/mi
1:38:55
↑ 19↓ 370.5%
25K· 15.53 mi
7:49/mi
1:57:52
↑ 66↓ 880.2%
30K· 18.64 mi
8:01/mi
2:22:45
↑ 181↓ 1480.2%
20M
8:18/mi
2:34:02
↑ 64↓ 500.2%
21M
9:00/mi
2:43:02
↑ 106↓ 241.6%
35K· 21.75 mi
8:13/mi
2:49:11
↑ 17↓ 861.7%
23M
8:42/mi
3:00:04
↑ 23↓ 630.6%
24M
8:12/mi
3:08:16
↓ 821.3%
40K· 24.85 mi
8:40/mi
3:15:41
↓ 200.3%
25.2M
9:17/mi
3:18:53
↑ 13↓ 160.2%
Finish· 26.22 mi
8:33/mi
3:27:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:38:55
Pace7:33 /mi
2nd Half
Distance13.11 mi
Time1:48:41
Pace8:17 /mi
📊Positive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4323:047:2523:04
7:25
-
10K
6.21 mi11:15:2046:417:3123:37
7:36
+0:11
15K
9.32 mi11:38:291:09:507:3023:09
7:27
-0:09
20K
12.43 mi12:02:181:33:397:3223:49
7:40
+0:13
Half
13.11 mi12:07:341:38:557:335:16
7:43
+0:03
25K
15.53 mi12:26:311:57:527:3518:57
7:49
+0:06
30K
18.64 mi12:51:242:22:457:3924:53
8:01
+0:12
20M
20.00 mi13:02:412:34:027:4211:17
8:18
+0:17
21M
21.00 mi13:11:412:43:027:469:00
9:00
+0:42
35K
21.75 mi13:17:502:49:117:476:09
8:13
-0:47
23M
23.00 mi13:28:433:00:047:5010:53
8:42
+0:29
24M
24.00 mi13:36:553:08:167:518:12
8:12
-0:30
40K
24.85 mi13:44:203:15:417:527:25
8:40
+0:28
25.2M
25.20 mi13:47:323:18:537:543:12
9:17
+0:37
Finish
26.22 mi13:56:153:27:367:558:43
8:33
-0:44

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

7:25 /mi

Average Pace

7:55 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:57:52

57% of race

Time at Steady Pace

50:31

24% of race

Time at Slower Pace

39:13

19% of race

Average Pace: 7:55 /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 mi10:51:4323:047:2523:04
7:25
#9029
10K
6.21 mi11:15:2046:417:3123:37
7:36
#10157
15K
9.32 mi11:38:291:09:507:3023:09
7:27
#9962
20K
12.43 mi12:02:181:33:397:3223:49
7:40
#10148
Half
13.11 mi12:07:341:38:557:335:16
7:43
#10244
25K
15.53 mi12:26:311:57:527:3518:57
7:49
#10374
30K
18.64 mi12:51:242:22:457:3924:53
8:01
#10417
20M
20.00 mi13:02:412:34:027:4211:17
8:18
#10564
21M
21.00 mi13:11:412:43:027:469:00
9:00
#10717
35K
21.75 mi13:17:502:49:117:476:09
8:13
#10806
23M
23.00 mi13:28:433:00:047:5010:53
8:42
#11026
24M
24.00 mi13:36:553:08:167:518:12
8:12
#11116
40K
24.85 mi13:44:203:15:417:527:25
8:40
#11236
25.2M
25.20 mi13:47:323:18:537:543:12
9:17
#11296
Finish
26.22 mi13:56:153:27:367:558:43
8:33
#11480
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi9029761676169777(Top 37%)8025(Top 53%)8025(Top 356%)
10K6.21 mi3.10 mi10157-11288240-6248240-62411341(Top 43%)8809(Top 58%)8809(Top 391%)
15K9.32 mi3.11 mi9962+1958140+1008140+1009777(Top 37%)8025(Top 53%)8025(Top 356%)
20K12.43 mi3.11 mi10148-1868236-968236-9610631(Top 40%)8399(Top 55%)8399(Top 373%)
Half13.11 mi0.68 mi10244-968279-438279-4311983(Top 45%)9060(Top 60%)9060(Top 402%)
25K15.53 mi2.42 mi10374-1308330-518330-5111203(Top 42%)8593(Top 57%)8593(Top 382%)
30K18.64 mi3.11 mi10417-438295+358295+3510975(Top 41%)8338(Top 55%)8338(Top 370%)
20M20.00 mi1.36 mi10564-1478345-508345-5012366(Top 46%)8849(Top 58%)8849(Top 393%)
21M21.00 mi1.00 mi10717-1538394-498394-4913384(Top 50%)9215(Top 61%)9215(Top 409%)
35K21.75 mi0.75 mi10806-898414-208414-2013537(Top 51%)9197(Top 61%)9197(Top 408%)
23M23.00 mi1.25 mi11026-2208503-898503-8914311(Top 54%)9490(Top 63%)9490(Top 421%)
24M24.00 mi1.00 mi11116-908516-138516-1312566(Top 47%)8656(Top 57%)8656(Top 384%)
40K24.85 mi0.85 mi11236-1208546-308546-3014341(Top 54%)9383(Top 62%)9383(Top 417%)
25.2M25.20 mi0.35 mi11296-608566-208566-2014005(Top 53%)9223(Top 61%)9223(Top 410%)
Finish26.22 mi1.02 mi11480-1848624-588624-5815700(Top 59%)10029(Top 66%)10029(Top 445%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9777

Males

8025

M45-49

8025

5K→10K

3.1 - 6.2 mi

Top 43%
×5story building
+79ft-138ft

Overall

11341

Males

8809

M45-49

8809

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9777

Males

8025

M45-49

8025

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

10631

Males

8399

M45-49

8399

20K→Half

12.4 - 13.1 mi

Top 45%
×2story building
+19ft-37ft

Overall

11983

Males

9060

M45-49

9060

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11203

Males

8593

M45-49

8593

25K→30K

15.5 - 18.6 mi

Top 41%
×9story building
+181ft-148ft

Overall

10975

Males

8338

M45-49

8338

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

12366

Males

8849

M45-49

8849

20M→21M

20.0 - 21.0 mi

Top 50%
×8story building
+106ft-24ft

Overall

13384

Males

9215

M45-49

9215

21M→35K

21.0 - 21.8 mi

Top 51%
×7story building
+17ft-86ft

Overall

13537

Males

9197

M45-49

9197

35K→23M

21.8 - 23.0 mi

Top 54%
×5story building
+23ft-63ft

Overall

14311

Males

9490

M45-49

9490

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12566

Males

8656

M45-49

8656

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

14341

Males

9383

M45-49

9383

40K→25.2M

24.9 - 25.2 mi

Top 53%
×1story
+13ft-16ft

Overall

14005

Males

9223

M45-49

9223

25.2M→Finish

25.2 - 26.2 mi

Top 59%
×2story building
+22ft-21ft

Overall

15700

Males

10029

M45-49

10029

Passing Analysis

Category:
Athletes Passed
946*
Passed By
3396
Net Change
-2451
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9029
5K → 10K441171-1128#9029#10157
10K → 15K285*90+195#10157#9962
15K → 20K105291-186#9962#10148
20K → Half7103-96#10148#10244
Half → 25K100230-130#10244#10374
25K → 30K150193-43#10374#10417
30K → 20M38*185-147#10417#10564
20M → 21M35188-153#10564#10717
21M → 35K27116-89#10717#10806
35K → 23M35255-220#10806#11026
23M → 24M46136-90#11026#11116
24M → 40K29149-120#11116#11236
40K → 25.2M1777-60#11236#11296
25.2M → Finish28212-184#11296#11480
TOTALS946*3396-2451

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

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing