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BOSTON MARATHON 2023

David Salama

Bib: 8789•M

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 20%
Gender (Male)
#0 / 15176
Top 32%
Masters (Masters Men)
#0 / 9891
Top 17%
Division (M40-44)
#0 / 2241
Top 41%
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
7:17/mi
22:39
↑ 97↓ 3451.5%
10K· 6.21 mi
7:07/mi
44:45
↑ 79↓ 1380.4%
15K· 9.32 mi
7:05/mi
1:06:45
↑ 67↓ 78
20K· 12.43 mi
7:08/mi
1:28:55
↑ 106↓ 860.1%
Half· 13.11 mi
6:59/mi
1:33:41
↑ 19↓ 370.5%
25K· 15.53 mi
7:02/mi
1:50:43
↑ 66↓ 880.2%
30K· 18.64 mi
7:10/mi
2:12:59
↑ 181↓ 1480.2%
20M
7:05/mi
2:22:36
↑ 64↓ 500.2%
21M
7:17/mi
2:29:53
↑ 106↓ 241.6%
35K· 21.75 mi
6:32/mi
2:34:46
↑ 17↓ 861.7%
23M
6:53/mi
2:43:23
↑ 23↓ 630.6%
24M
6:46/mi
2:50:09
↓ 821.3%
40K· 24.85 mi
6:44/mi
2:55:54
↓ 200.3%
25.2M
7:09/mi
2:58:22
↑ 13↓ 160.2%
Finish· 26.22 mi
6:28/mi
3:04:57
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:33:41
Pace7:09 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:31:16
Pace6:58 /mi
📊Negative Split: 2.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:0022:397:1722:39
7:17
-
10K
6.21 mi11:11:0644:457:1222:06
7:07
-0:10
15K
9.32 mi11:33:061:06:457:1022:00
7:05
-0:02
20K
12.43 mi11:55:161:28:557:0922:10
7:08
+0:03
Half
13.11 mi12:00:021:33:417:094:46
6:59
-0:09
25K
15.53 mi12:17:041:50:437:0817:02
7:02
+0:03
30K
18.64 mi12:39:202:12:597:0822:16
7:10
+0:08
20M
20.00 mi12:48:572:22:367:089:37
7:05
-0:05
21M
21.00 mi12:56:142:29:537:087:17
7:17
+0:12
35K
21.75 mi13:01:072:34:467:074:53
6:32
-0:45
23M
23.00 mi13:09:442:43:237:068:37
6:53
+0:21
24M
24.00 mi13:16:302:50:097:056:46
6:46
-0:07
40K
24.85 mi13:22:152:55:547:055:45
6:44
-0:02
25.2M
25.20 mi13:24:432:58:227:052:28
7:09
+0:25
Finish
26.22 mi13:31:183:04:577:046:35
6:28
-0:41

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

6:28 /mi

Average Pace

7:04 /mi

Slowest Pace

7:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:26:01

47% of race

Time at Steady Pace

1:38:56

53% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:03 /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 mi10:49:0022:397:1722:39
7:17
#8044
10K
6.21 mi11:11:0644:457:1222:06
7:07
#7770
15K
9.32 mi11:33:061:06:457:1022:00
7:05
#7492
20K
12.43 mi11:55:161:28:557:0922:10
7:08
#7243
Half
13.11 mi12:00:021:33:417:094:46
6:59
#7206
25K
15.53 mi12:17:041:50:437:0817:02
7:02
#6931
30K
18.64 mi12:39:202:12:597:0822:16
7:10
#6588
20M
20.00 mi12:48:572:22:367:089:37
7:05
#6406
21M
21.00 mi12:56:142:29:537:087:17
7:17
#6200
35K
21.75 mi13:01:072:34:467:074:53
6:32
#6053
23M
23.00 mi13:09:442:43:237:068:37
6:53
#5832
24M
24.00 mi13:16:302:50:097:056:46
6:46
#5668
40K
24.85 mi13:22:152:55:547:055:45
6:44
#5505
25.2M
25.20 mi13:24:432:58:227:052:28
7:09
#5427
Finish
26.22 mi13:31:183:04:577:046:35
6:28
#5247
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi8044700470047022(Top 26%)6255(Top 41%)6255(Top 279%)
10K6.21 mi3.10 mi7770+2746820+1846820+1847514(Top 28%)6609(Top 44%)6609(Top 295%)
15K9.32 mi3.11 mi7492+2786615+2056615+2057022(Top 26%)6255(Top 41%)6255(Top 279%)
20K12.43 mi3.11 mi7243+2496424+1916424+1916726(Top 25%)6005(Top 40%)6005(Top 268%)
Half13.11 mi0.68 mi7206+376397+276397+276418(Top 24%)5794(Top 38%)5794(Top 259%)
25K15.53 mi2.42 mi6931+2756188+2096188+2095708(Top 21%)5226(Top 34%)5226(Top 233%)
30K18.64 mi3.11 mi6588+3435909+2795909+2795310(Top 20%)4845(Top 32%)4845(Top 216%)
20M20.00 mi1.36 mi6406+1825761+1485761+1484489(Top 17%)4130(Top 27%)4130(Top 184%)
21M21.00 mi1.00 mi6200+2065590+1715590+1713546(Top 13%)3297(Top 22%)3297(Top 147%)
35K21.75 mi0.75 mi6053+1475472+1185472+1182620(Top 10%)2479(Top 16%)2479(Top 111%)
23M23.00 mi1.25 mi5832+2215292+1805292+1803141(Top 12%)2927(Top 19%)2927(Top 131%)
24M24.00 mi1.00 mi5668+1645155+1375155+1373496(Top 13%)3221(Top 21%)3221(Top 144%)
40K24.85 mi0.85 mi5505+1635016+1395016+1392499(Top 9%)2319(Top 15%)2319(Top 103%)
25.2M25.20 mi0.35 mi5427+784950+664950+662391(Top 9%)2224(Top 15%)2224(Top 99%)
Finish26.22 mi1.02 mi5247+1804797+1534797+1532323(Top 9%)2151(Top 14%)2151(Top 96%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 26%
×21story building
+97ft-345ft

Overall

7022

Males

6255

M40-44

6255

5K→10K

3.1 - 6.2 mi

Top 28%
×5story building
+79ft-138ft

Overall

7514

Males

6609

M40-44

6609

10K→15K

6.2 - 9.3 mi

Top 26%
×3story building
+67ft-78ft

Overall

7022

Males

6255

M40-44

6255

15K→20K

9.3 - 12.4 mi

Top 25%
×5story building
+106ft-86ft

Overall

6726

Males

6005

M40-44

6005

20K→Half

12.4 - 13.1 mi

Top 24%
×2story building
+19ft-37ft

Overall

6418

Males

5794

M40-44

5794

Half→25K

13.1 - 15.5 mi

Top 21%
×4story building
+66ft-88ft

Overall

5708

Males

5226

M40-44

5226

25K→30K

15.5 - 18.6 mi

Top 20%
×9story building
+181ft-148ft

Overall

5310

Males

4845

M40-44

4845

30K→20M

18.6 - 20.0 mi

Top 17%
×5story building
+64ft-50ft

Overall

4489

Males

4130

M40-44

4130

20M→21M

20.0 - 21.0 mi

Top 13%
×8story building
+106ft-24ft

Overall

3546

Males

3297

M40-44

3297

21M→35K

21.0 - 21.8 mi

Top 10%
×7story building
+17ft-86ft

Overall

2620

Males

2479

M40-44

2479

35K→23M

21.8 - 23.0 mi

Top 12%
×5story building
+23ft-63ft

Overall

3141

Males

2927

M40-44

2927

23M→24M

23.0 - 24.0 mi

Top 13%
×6story building
+12ft-82ft

Overall

3496

Males

3221

M40-44

3221

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2499

Males

2319

M40-44

2319

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1story
+13ft-16ft

Overall

2391

Males

2224

M40-44

2224

25.2M→Finish

25.2 - 26.2 mi

Top 9%
×2story building
+22ft-21ft

Overall

2323

Males

2151

M40-44

2151

Passing Analysis

Category:
Athletes Passed
2997
Passed By
200
Net Change
+2797
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8044
5K → 10K399125+274#8044#7770
10K → 15K31335+278#7770#7492
15K → 20K26516+249#7492#7243
20K → Half392+37#7243#7206
Half → 25K2783+275#7206#6931
25K → 30K3507+343#6931#6588
30K → 20M1842+182#6588#6406
20M → 21M2082+206#6406#6200
21M → 35K1470+147#6200#6053
35K → 23M2210+221#6053#5832
23M → 24M1673+164#5832#5668
24M → 40K1652+163#5668#5505
40K → 25.2M780+78#5505#5427
25.2M → Finish1833+180#5427#5247
TOTALS2997200+2797
📊

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