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BOSTON MARATHON 2023

Robert Atlas

CA

Bib: 6620 M

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 33%
Gender (Male)
#0 / 15176
Top 47%
Division (M18-39)
#0 / 5285
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
6:54/mi
21:25
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
6:48/mi
42:34
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
6:52/mi
1:03:54
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:10/mi
1:26:11
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:01/mi
1:30:58
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:28/mi
1:51:30
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:09/mi
2:16:48
↑ 181↓ 1480.2%
138 ft elev
20M
8:31/mi
2:28:23
↑ 64↓ 500.2%
148 ft elev
21M
8:40/mi
2:37:03
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:38/mi
2:42:46
↑ 17↓ 861.7%
156 ft elev
23M
8:06/mi
2:52:54
↑ 23↓ 630.6%
116 ft elev
24M
8:11/mi
3:01:05
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:22/mi
3:08:14
↓ 200.3%
20 ft elev
25.2M
8:16/mi
3:11:05
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:08/mi
3:18:21
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:30:58
Pace6:56 /mi
2nd Half
Distance13.11 mi
Time1:47:23
Pace8:11 /mi
📊Positive Split: 18.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:3521:256:5421:25
6:54
-
10K
6.21 mi10:46:4442:346:5121:09
6:48
-0:06
15K
9.32 mi11:08:041:03:546:5121:20
6:52
+0:04
20K
12.43 mi11:30:211:26:116:5622:17
7:10
+0:18
Half
13.11 mi11:35:081:30:586:564:47
7:01
-0:09
25K
15.53 mi11:55:401:51:307:1120:32
8:28
+1:27
30K
18.64 mi12:20:582:16:487:2025:18
8:09
-0:19
20M
20.00 mi12:32:332:28:237:2511:35
8:31
+0:22
21M
21.00 mi12:41:132:37:037:298:40
8:40
+0:09
35K
21.75 mi12:46:562:42:467:295:43
7:38
-1:02
23M
23.00 mi12:57:042:52:547:3110:08
8:06
+0:28
24M
24.00 mi13:05:153:01:057:338:11
8:11
+0:05
40K
24.85 mi13:12:243:08:147:347:09
8:22
+0:11
25.2M
25.20 mi13:15:153:11:057:352:51
8:16
-0:06
Finish
26.22 mi13:22:313:18:217:347:16
7:08
-1:08

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

6:48 /mi

Average Pace

7:34 /mi

Slowest Pace

8:40 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:43:57

52% of race

Time at Steady Pace

53:37

27% of race

Time at Slower Pace

40:47

21% of race

Average Pace: 7:34 /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 mi10:25:3521:256:5421:25
6:54
#5518
10K
6.21 mi10:46:4442:346:5121:09
6:48
#5435
15K
9.32 mi11:08:041:03:546:5121:20
6:52
#5526
20K
12.43 mi11:30:211:26:116:5622:17
7:10
#5954
Half
13.11 mi11:35:081:30:586:564:47
7:01
#5986
25K
15.53 mi11:55:401:51:307:1120:32
8:28
#7243
30K
18.64 mi12:20:582:16:487:2025:18
8:09
#7923
20M
20.00 mi12:32:332:28:237:2511:35
8:31
#8317
21M
21.00 mi12:41:132:37:037:298:40
8:40
#8491
35K
21.75 mi12:46:562:42:467:295:43
7:38
#8516
23M
23.00 mi12:57:042:52:547:3110:08
8:06
#8600
24M
24.00 mi13:05:153:01:057:338:11
8:11
#8753
40K
24.85 mi13:12:243:08:147:347:09
8:22
#8877
25.2M
25.20 mi13:15:153:11:057:352:51
8:16
#8844
Finish
26.22 mi13:22:313:18:217:347:16
7:08
#8703
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi5518509150915718(Top 21%)5249(Top 35%)5249(Top 99%)
10K6.21 mi3.10 mi5435+835020+715020+715387(Top 20%)4972(Top 33%)4972(Top 94%)
15K9.32 mi3.11 mi5526-915094-745094-745718(Top 21%)5249(Top 35%)5249(Top 99%)
20K12.43 mi3.11 mi5954-4285437-3435437-3436922(Top 26%)6153(Top 41%)6153(Top 116%)
Half13.11 mi0.68 mi5986-325463-265463-266624(Top 25%)5964(Top 39%)5964(Top 113%)
25K15.53 mi2.42 mi7243-12576414-9516414-95115990(Top 60%)10530(Top 69%)10530(Top 199%)
30K18.64 mi3.11 mi7923-6806827-4136827-41311927(Top 45%)8765(Top 58%)8765(Top 166%)
20M20.00 mi1.36 mi8317-3947048-2217048-22113746(Top 52%)9453(Top 62%)9453(Top 179%)
21M21.00 mi1.00 mi8491-1747148-1007148-10011421(Top 43%)8298(Top 55%)8298(Top 157%)
35K21.75 mi0.75 mi8516-25714871489517(Top 36%)7354(Top 48%)7354(Top 139%)
23M23.00 mi1.25 mi8600-847181-337181-3310370(Top 39%)7660(Top 50%)7660(Top 145%)
24M24.00 mi1.00 mi8753-1537252-717252-7112453(Top 47%)8599(Top 57%)8599(Top 163%)
40K24.85 mi0.85 mi8877-1247294-427294-4212415(Top 47%)8496(Top 56%)8496(Top 161%)
25.2M25.20 mi0.35 mi8844+337266+287266+288033(Top 30%)6193(Top 41%)6193(Top 117%)
Finish26.22 mi1.02 mi8703+1417166+1007166+1005997(Top 23%)4936(Top 33%)4936(Top 93%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21story building
+97ft-345ft

Overall

5718

Males

5249

M18-39

5249

5K→10K

3.1 - 6.2 mi

Top 20%
×5story building
+79ft-138ft

Overall

5387

Males

4972

M18-39

4972

10K→15K

6.2 - 9.3 mi

Top 21%
×3story building
+67ft-78ft

Overall

5718

Males

5249

M18-39

5249

15K→20K

9.3 - 12.4 mi

Top 26%
×5story building
+106ft-86ft

Overall

6922

Males

6153

M18-39

6153

20K→Half

12.4 - 13.1 mi

Top 25%
×2story building
+19ft-37ft

Overall

6624

Males

5964

M18-39

5964

Half→25K

13.1 - 15.5 mi

Top 60%
×4story building
+66ft-88ft

Overall

15990

Males

10530

M18-39

10530

25K→30K

15.5 - 18.6 mi

Top 45%
×9story building
+181ft-148ft

Overall

11927

Males

8765

M18-39

8765

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

13746

Males

9453

M18-39

9453

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

11421

Males

8298

M18-39

8298

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

9517

Males

7354

M18-39

7354

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

10370

Males

7660

M18-39

7660

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

12453

Males

8599

M18-39

8599

24M→40K

24.0 - 24.9 mi

Top 47%
×1story
+6ft-20ft

Overall

12415

Males

8496

M18-39

8496

40K→25.2M

24.9 - 25.2 mi

Top 30%
×1story
+13ft-16ft

Overall

8033

Males

6193

M18-39

6193

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

5997

Males

4936

M18-39

4936

Passing Analysis

Category:
Athletes Passed
788
Passed By
3973
Net Change
-3185
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5518
5K → 10K244161+83#5518#5435
10K → 15K84175-91#5435#5526
15K → 20K24452-428#5526#5954
20K → Half1244-32#5954#5986
Half → 25K31260-1257#5986#7243
25K → 30K25705-680#7243#7923
30K → 20M24418-394#7923#8317
20M → 21M36210-174#8317#8491
21M → 35K3358-25#8491#8516
35K → 23M59143-84#8516#8600
23M → 24M26179-153#8600#8753
24M → 40K29153-124#8753#8877
40K → 25.2M4310+33#8877#8844
25.2M → Finish1465+141#8844#8703
TOTALS7883973-3185
📊

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