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BOSTON MARATHON 2023

Jim Bonner

Bib: 17918•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
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
8:13/mi
25:33
↑ 97↓ 3451.5%
10K· 6.21 mi
8:01/mi
50:26
↑ 79↓ 1380.4%
15K· 9.32 mi
7:54/mi
1:14:58
↑ 67↓ 78
20K· 12.43 mi
8:06/mi
1:40:09
↑ 106↓ 860.1%
Half· 13.11 mi
10:48/mi
1:47:31
↑ 19↓ 370.5%
25K· 15.53 mi
8:02/mi
2:06:59
↑ 66↓ 880.2%
30K· 18.64 mi
8:43/mi
2:34:04
↑ 181↓ 1480.2%
20M
9:03/mi
2:46:22
↑ 64↓ 500.2%
21M
9:38/mi
2:56:00
↑ 106↓ 241.6%
35K· 21.75 mi
8:57/mi
3:02:42
↑ 17↓ 861.7%
23M
9:52/mi
3:15:03
↑ 23↓ 630.6%
24M
9:01/mi
3:24:04
↓ 821.3%
40K· 24.85 mi
9:26/mi
3:32:08
↓ 200.3%
25.2M
11:01/mi
3:35:56
↑ 13↓ 160.2%
Finish· 26.22 mi
8:40/mi
3:44:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:31
Pace8:12 /mi
2nd Half
Distance13.11 mi
Time1:57:15
Pace8:57 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:5125:338:1325:33
8:13
-
10K
6.21 mi11:46:4450:268:0724:53
8:01
-0:12
15K
9.32 mi12:11:161:14:588:0324:32
7:54
-0:07
20K
12.43 mi12:36:271:40:098:0425:11
8:06
+0:12
Half
13.11 mi12:43:491:47:318:127:22
10:48
+2:42
25K
15.53 mi13:03:172:06:598:1019:28
8:02
-2:46
30K
18.64 mi13:30:222:34:048:1627:05
8:43
+0:41
20M
20.00 mi13:42:402:46:228:1912:18
9:03
+0:20
21M
21.00 mi13:52:182:56:008:239:38
9:38
+0:35
35K
21.75 mi13:59:003:02:428:246:42
8:57
-0:41
23M
23.00 mi14:11:213:15:038:2912:21
9:52
+0:55
24M
24.00 mi14:20:223:24:048:309:01
9:01
-0:51
40K
24.85 mi14:28:263:32:088:328:04
9:26
+0:25
25.2M
25.20 mi14:32:143:35:568:343:48
11:01
+1:35
Finish
26.22 mi14:41:043:44:468:358:50
8:40
-2:21

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

7:54 /mi

Average Pace

8:35 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59:37

53% of race

Time at Steady Pace

1:03:56

28% of race

Time at Slower Pace

41:13

18% of race

Average Pace: 8:34 /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 mi11:21:5125:338:1325:33
8:13
#15614
10K
6.21 mi11:46:4450:268:0724:53
8:01
#15223
15K
9.32 mi12:11:161:14:588:0324:32
7:54
#14679
20K
12.43 mi12:36:271:40:098:0425:11
8:06
#14548
Half
13.11 mi12:43:491:47:318:127:22
10:48
#15597
25K
15.53 mi13:03:172:06:598:1019:28
8:02
#15163
30K
18.64 mi13:30:222:34:048:1627:05
8:43
#15226
20M
20.00 mi13:42:402:46:228:1912:18
9:03
#15354
21M
21.00 mi13:52:182:56:008:239:38
9:38
#15398
35K
21.75 mi13:59:003:02:428:246:42
8:57
#15496
23M
23.00 mi14:11:213:15:038:2912:21
9:52
#15801
24M
24.00 mi14:20:223:24:048:309:01
9:01
#15895
40K
24.85 mi14:28:263:32:088:328:04
9:26
#15990
25.2M
25.20 mi14:32:143:35:568:343:48
11:01
#16091
Finish
26.22 mi14:41:043:44:468:358:50
8:40
#16121
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi15614105481054813497(Top 51%)9710(Top 64%)9710(Top 683%)
10K6.21 mi3.10 mi15223+39110420+12810420+12814854(Top 56%)10256(Top 68%)10256(Top 721%)
15K9.32 mi3.11 mi14679+54410200+22010200+22013497(Top 51%)9710(Top 64%)9710(Top 683%)
20K12.43 mi3.11 mi14548+13110131+6910131+6914254(Top 54%)9982(Top 66%)9982(Top 702%)
Half13.11 mi0.68 mi15597-104910520-38910520-38924655(Top 93%)14335(Top 94%)14335(Top 1008%)
25K15.53 mi2.42 mi15163+43410332+18810332+18812978(Top 49%)9349(Top 62%)9349(Top 657%)
30K18.64 mi3.11 mi15226-6310308+2410308+2415598(Top 59%)10306(Top 68%)10306(Top 725%)
20M20.00 mi1.36 mi15354-12810335-2710335-2716788(Top 63%)10739(Top 71%)10739(Top 755%)
21M21.00 mi1.00 mi15398-4410323+1210323+1216558(Top 62%)10589(Top 70%)10589(Top 745%)
35K21.75 mi0.75 mi15496-9810347-2410347-2417700(Top 66%)11008(Top 73%)11008(Top 774%)
23M23.00 mi1.25 mi15801-30510441-9410441-9419588(Top 74%)11831(Top 78%)11831(Top 832%)
24M24.00 mi1.00 mi15895-9410461-2010461-2017291(Top 65%)10756(Top 71%)10756(Top 756%)
40K24.85 mi0.85 mi15990-9510498-3710498-3718070(Top 68%)11066(Top 73%)11066(Top 778%)
25.2M25.20 mi0.35 mi16091-10110546-4810546-4820466(Top 77%)12133(Top 80%)12133(Top 853%)
Finish26.22 mi1.02 mi16121-3010538+810538+816321(Top 61%)10301(Top 68%)10301(Top 724%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

13497

Males

9710

M55-59

9710

5K→10K

3.1 - 6.2 mi

Top 56%
×5story building
+79ft-138ft

Overall

14854

Males

10256

M55-59

10256

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

13497

Males

9710

M55-59

9710

15K→20K

9.3 - 12.4 mi

Top 54%
×5story building
+106ft-86ft

Overall

14254

Males

9982

M55-59

9982

20K→Half

12.4 - 13.1 mi

Top 93%
×2story building
+19ft-37ft

Overall

24655

Males

14335

M55-59

14335

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

12978

Males

9349

M55-59

9349

25K→30K

15.5 - 18.6 mi

Top 59%
×9story building
+181ft-148ft

Overall

15598

Males

10306

M55-59

10306

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16788

Males

10739

M55-59

10739

20M→21M

20.0 - 21.0 mi

Top 62%
×8story building
+106ft-24ft

Overall

16558

Males

10589

M55-59

10589

21M→35K

21.0 - 21.8 mi

Top 66%
×7story building
+17ft-86ft

Overall

17700

Males

11008

M55-59

11008

35K→23M

21.8 - 23.0 mi

Top 74%
×5story building
+23ft-63ft

Overall

19588

Males

11831

M55-59

11831

23M→24M

23.0 - 24.0 mi

Top 65%
×6story building
+12ft-82ft

Overall

17291

Males

10756

M55-59

10756

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

18070

Males

11066

M55-59

11066

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1story
+13ft-16ft

Overall

20466

Males

12133

M55-59

12133

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2story building
+22ft-21ft

Overall

16321

Males

10301

M55-59

10301

Passing Analysis

Category:
Athletes Passed
2277
Passed By
2784
Net Change
-507
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15614
5K → 10K544153+391#15614#15223
10K → 15K56925+544#15223#14679
15K → 20K254123+131#14679#14548
20K → Half01049-1049#14548#15597
Half → 25K4406+434#15597#15163
25K → 30K160223-63#15163#15226
30K → 20M46174-128#15226#15354
20M → 21M70114-44#15354#15398
21M → 35K26124-98#15398#15496
35K → 23M22327-305#15496#15801
23M → 24M46140-94#15801#15895
24M → 40K33128-95#15895#15990
40K → 25.2M10111-101#15990#16091
25.2M → Finish5787-30#16091#16121
TOTALS22772784-507
📊

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