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BOSTON MARATHON 2023

David Sacoman

Bib: 10506•M

NM

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 31%
Gender (Male)
#0 / 15176
Top 45%
Masters (Masters Men)
#0 / 9891
Top 33%
Division (M55-59)
#0 / 1422
Top 14%
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
7:19/mi
22:43
↑ 97↓ 3451.5%
10K· 6.21 mi
6:47/mi
43:48
↑ 79↓ 1380.4%
15K· 9.32 mi
6:49/mi
1:05:00
↑ 67↓ 78
20K· 12.43 mi
6:56/mi
1:26:34
↑ 106↓ 860.1%
Half· 13.11 mi
6:53/mi
1:31:16
↑ 19↓ 370.5%
25K· 15.53 mi
7:02/mi
1:48:18
↑ 66↓ 880.2%
30K· 18.64 mi
7:28/mi
2:11:31
↑ 181↓ 1480.2%
20M
7:52/mi
2:22:13
↑ 64↓ 500.2%
21M
8:34/mi
2:30:47
↑ 106↓ 241.6%
35K· 21.75 mi
7:57/mi
2:36:44
↑ 17↓ 861.7%
23M
8:31/mi
2:47:24
↑ 23↓ 630.6%
24M
8:37/mi
2:56:01
↓ 821.3%
40K· 24.85 mi
9:07/mi
3:03:49
↓ 200.3%
25.2M
10:15/mi
3:07:21
↑ 13↓ 160.2%
Finish· 26.22 mi
9:14/mi
3:16:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:31:16
Pace6:58 /mi
2nd Half
Distance13.11 mi
Time1:45:30
Pace8:03 /mi
📊Positive Split: 15.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:0022:437:1922:43
7:19
-
10K
6.21 mi11:10:0543:487:0321:05
6:47
-0:32
15K
9.32 mi11:31:171:05:006:5821:12
6:49
+0:02
20K
12.43 mi11:52:511:26:346:5821:34
6:56
+0:07
Half
13.11 mi11:57:331:31:166:584:42
6:53
-0:03
25K
15.53 mi12:14:351:48:186:5817:02
7:02
+0:09
30K
18.64 mi12:37:482:11:317:0323:13
7:28
+0:26
20M
20.00 mi12:48:302:22:137:0710:42
7:52
+0:24
21M
21.00 mi12:57:042:30:477:118:34
8:34
+0:42
35K
21.75 mi13:03:012:36:447:125:57
7:57
-0:37
23M
23.00 mi13:13:412:47:247:1710:40
8:31
+0:34
24M
24.00 mi13:22:182:56:017:208:37
8:37
+0:06
40K
24.85 mi13:30:063:03:497:247:48
9:07
+0:30
25.2M
25.20 mi13:33:383:07:217:263:32
10:15
+1:08
Finish
26.22 mi13:43:033:16:467:319:25
9:14
-1:01

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

6:47 /mi

Average Pace

7:31 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:48:18

55% of race

Time at Steady Pace

39:52

20% of race

Time at Slower Pace

48:36

25% of race

Average Pace: 7:30 /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 mi10:49:0022:437:1922:43
7:19
#8170
10K
6.21 mi11:10:0543:487:0321:05
6:47
#6798
15K
9.32 mi11:31:171:05:006:5821:12
6:49
#6345
20K
12.43 mi11:52:511:26:346:5821:34
6:56
#6138
Half
13.11 mi11:57:331:31:166:584:42
6:53
#6127
25K
15.53 mi12:14:351:48:186:5817:02
7:02
#6040
30K
18.64 mi12:37:482:11:317:0323:13
7:28
#6168
20M
20.00 mi12:48:302:22:137:0710:42
7:52
#6296
21M
21.00 mi12:57:042:30:477:118:34
8:34
#6463
35K
21.75 mi13:03:012:36:447:125:57
7:57
#6594
23M
23.00 mi13:13:412:47:247:1710:40
8:31
#6855
24M
24.00 mi13:22:182:56:017:208:37
8:37
#7191
40K
24.85 mi13:30:063:03:497:247:48
9:07
#7512
25.2M
25.20 mi13:33:383:07:217:263:32
10:15
#7720
Finish
26.22 mi13:43:033:16:467:319:25
9:14
#8222
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi8170709070905344(Top 20%)4936(Top 33%)4936(Top 347%)
10K6.21 mi3.10 mi6798+13726115+9756115+9755169(Top 19%)4783(Top 32%)4783(Top 336%)
15K9.32 mi3.11 mi6345+4535744+3715744+3715344(Top 20%)4936(Top 33%)4936(Top 347%)
20K12.43 mi3.11 mi6138+2075583+1615583+1615623(Top 21%)5165(Top 34%)5165(Top 363%)
Half13.11 mi0.68 mi6127+115575+85575+85956(Top 22%)5465(Top 36%)5465(Top 384%)
25K15.53 mi2.42 mi6040+875512+635512+635732(Top 22%)5250(Top 35%)5250(Top 369%)
30K18.64 mi3.11 mi6168-1285592-805592-807043(Top 26%)6101(Top 40%)6101(Top 429%)
20M20.00 mi1.36 mi6296-1285678-865678-869358(Top 35%)7386(Top 49%)7386(Top 519%)
21M21.00 mi1.00 mi6463-1675784-1065784-10610830(Top 41%)8027(Top 53%)8027(Top 564%)
35K21.75 mi0.75 mi6594-1315874-905874-9011714(Top 44%)8414(Top 55%)8414(Top 592%)
23M23.00 mi1.25 mi6855-2616057-1836057-18313322(Top 50%)9045(Top 60%)9045(Top 636%)
24M24.00 mi1.00 mi7191-3366263-2066263-20615121(Top 57%)9793(Top 65%)9793(Top 689%)
40K24.85 mi0.85 mi7512-3216450-1876450-18716693(Top 63%)10431(Top 69%)10431(Top 734%)
25.2M25.20 mi0.35 mi7720-2086582-1326582-13218208(Top 68%)11103(Top 73%)11103(Top 781%)
Finish26.22 mi1.02 mi8222-5026873-2916873-29119077(Top 72%)11565(Top 76%)11565(Top 813%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 20%
×21story building
+97ft-345ft

Overall

5344

Males

4936

M55-59

4936

5K→10K

3.1 - 6.2 mi

Top 19%
×5story building
+79ft-138ft

Overall

5169

Males

4783

M55-59

4783

10K→15K

6.2 - 9.3 mi

Top 20%
×3story building
+67ft-78ft

Overall

5344

Males

4936

M55-59

4936

15K→20K

9.3 - 12.4 mi

Top 21%
×5story building
+106ft-86ft

Overall

5623

Males

5165

M55-59

5165

20K→Half

12.4 - 13.1 mi

Top 22%
×2story building
+19ft-37ft

Overall

5956

Males

5465

M55-59

5465

Half→25K

13.1 - 15.5 mi

Top 22%
×4story building
+66ft-88ft

Overall

5732

Males

5250

M55-59

5250

25K→30K

15.5 - 18.6 mi

Top 26%
×9story building
+181ft-148ft

Overall

7043

Males

6101

M55-59

6101

30K→20M

18.6 - 20.0 mi

Top 35%
×5story building
+64ft-50ft

Overall

9358

Males

7386

M55-59

7386

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

10830

Males

8027

M55-59

8027

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11714

Males

8414

M55-59

8414

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

13322

Males

9045

M55-59

9045

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

15121

Males

9793

M55-59

9793

24M→40K

24.0 - 24.9 mi

Top 63%
×1story
+6ft-20ft

Overall

16693

Males

10431

M55-59

10431

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

18208

Males

11103

M55-59

11103

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

19077

Males

11565

M55-59

11565

Passing Analysis

Category:
Athletes Passed
2403
Passed By
2455
Net Change
-52
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8170
5K → 10K13742+1372#8170#6798
10K → 15K4607+453#6798#6345
15K → 20K22619+207#6345#6138
20K → Half2211+11#6138#6127
Half → 25K12336+87#6127#6040
25K → 30K84212-128#6040#6168
30K → 20M31159-128#6168#6296
20M → 21M21188-167#6296#6463
21M → 35K15146-131#6463#6594
35K → 23M21282-261#6594#6855
23M → 24M10346-336#6855#7191
24M → 40K11332-321#7191#7512
40K → 25.2M1209-208#7512#7720
25.2M → Finish4506-502#7720#8222
TOTALS24032455-52
📊

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