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BOSTON MARATHON 2023

Laura Roberts

Bib: 18832•F

WV

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 40%
Gender (Female)
#0 / 11423
Top 21%
Masters (Masters Women)
#0 / 6539
Top 10%
Division (F40-44)
#0 / 1878
Top 20%
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
7:58/mi
24:46
↑ 97↓ 3451.5%
10K· 6.21 mi
7:48/mi
49:01
↑ 79↓ 1380.4%
15K· 9.32 mi
7:44/mi
1:13:03
↑ 67↓ 78
20K· 12.43 mi
7:44/mi
1:37:04
↑ 106↓ 860.1%
Half· 13.11 mi
7:37/mi
1:42:16
↑ 19↓ 370.5%
25K· 15.53 mi
7:41/mi
2:00:54
↑ 66↓ 880.2%
30K· 18.64 mi
7:46/mi
2:25:02
↑ 181↓ 1480.2%
20M
7:44/mi
2:35:33
↑ 64↓ 500.2%
21M
8:16/mi
2:43:49
↑ 106↓ 241.6%
35K· 21.75 mi
7:34/mi
2:49:29
↑ 17↓ 861.7%
23M
8:35/mi
3:00:14
↑ 23↓ 630.6%
24M
7:58/mi
3:08:12
↓ 821.3%
40K· 24.85 mi
7:35/mi
3:14:41
↓ 200.3%
25.2M
8:04/mi
3:17:28
↑ 13↓ 160.2%
Finish· 26.22 mi
7:28/mi
3:25:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:42:16
Pace7:48 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:42:49
Pace7:51 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:1224:467:5824:46
7:58
-
10K
6.21 mi11:46:2749:017:5324:15
7:48
-0:10
15K
9.32 mi12:10:291:13:037:5024:02
7:44
-0:04
20K
12.43 mi12:34:301:37:047:4924:01
7:44
0:00
Half
13.11 mi12:39:421:42:167:485:12
7:37
-0:07
25K
15.53 mi12:58:202:00:547:4718:38
7:41
+0:04
30K
18.64 mi13:22:282:25:027:4724:08
7:46
+0:05
20M
20.00 mi13:32:592:35:337:4710:31
7:44
-0:02
21M
21.00 mi13:41:152:43:497:488:16
8:16
+0:32
35K
21.75 mi13:46:552:49:297:485:40
7:34
-0:42
23M
23.00 mi13:57:403:00:147:5010:45
8:35
+1:01
24M
24.00 mi14:05:383:08:127:517:58
7:58
-0:37
40K
24.85 mi14:12:073:14:417:506:29
7:35
-0:23
25.2M
25.20 mi14:14:543:17:287:502:47
8:04
+0:29
Finish
26.22 mi14:22:313:25:057:507:37
7:28
-0:36

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

7:28 /mi

Average Pace

7:50 /mi

Slowest Pace

8:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:06:04

91% of race

Time at Steady Pace

19:01

9% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:49 /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 mi11:22:1224:467:5824:46
7:58
#13814
10K
6.21 mi11:46:2749:017:5324:15
7:48
#13491
15K
9.32 mi12:10:291:13:037:5024:02
7:44
#13016
20K
12.43 mi12:34:301:37:047:4924:01
7:44
#12487
Half
13.11 mi12:39:421:42:167:485:12
7:37
#12415
25K
15.53 mi12:58:202:00:547:4718:38
7:41
#12036
30K
18.64 mi13:22:282:25:027:4724:08
7:46
#11449
20M
20.00 mi13:32:592:35:337:4710:31
7:44
#11171
21M
21.00 mi13:41:152:43:497:488:16
8:16
#11013
35K
21.75 mi13:46:552:49:297:485:40
7:34
#10923
23M
23.00 mi13:57:403:00:147:5010:45
8:35
#11096
24M
24.00 mi14:05:383:08:127:517:58
7:58
#11089
40K
24.85 mi14:12:073:14:417:506:29
7:35
#10902
25.2M
25.20 mi14:14:543:17:287:502:47
8:04
#10816
Finish
26.22 mi14:22:313:25:057:507:37
7:28
#10675
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi138143902390212168(Top 46%)2990(Top 26%)2990(Top 159%)
10K6.21 mi3.10 mi13491+3233727+1753727+17513168(Top 49%)3523(Top 31%)3523(Top 188%)
15K9.32 mi3.11 mi13016+4753469+2583469+25812168(Top 46%)2990(Top 26%)2990(Top 159%)
20K12.43 mi3.11 mi12487+5293192+2773192+27711155(Top 42%)2488(Top 22%)2488(Top 132%)
Half13.11 mi0.68 mi12415+723155+373155+3711262(Top 42%)2493(Top 22%)2493(Top 133%)
25K15.53 mi2.42 mi12036+3792961+1942961+19410210(Top 38%)2093(Top 18%)2093(Top 111%)
30K18.64 mi3.11 mi11449+5872665+2962665+2969135(Top 34%)1773(Top 16%)1773(Top 94%)
20M20.00 mi1.36 mi11171+2782530+1352530+1358473(Top 32%)1597(Top 14%)1597(Top 85%)
21M21.00 mi1.00 mi11013+1582466+642466+649059(Top 34%)1956(Top 17%)1956(Top 104%)
35K21.75 mi0.75 mi10923+902437+292437+299145(Top 34%)1995(Top 17%)1995(Top 106%)
23M23.00 mi1.25 mi11096-1732542-1052542-10513728(Top 52%)4456(Top 39%)4456(Top 237%)
24M24.00 mi1.00 mi11089+72568-262568-2611020(Top 41%)3093(Top 27%)3093(Top 165%)
40K24.85 mi0.85 mi10902+1872504+642504+647263(Top 27%)1482(Top 13%)1482(Top 79%)
25.2M25.20 mi0.35 mi10816+862474+302474+307020(Top 26%)1443(Top 13%)1443(Top 77%)
Finish26.22 mi1.02 mi10675+1412427+472427+478399(Top 32%)2000(Top 18%)2000(Top 106%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21story building
+97ft-345ft

Overall

12168

Females

2990

F40-44

2990

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13168

Females

3523

F40-44

3523

10K→15K

6.2 - 9.3 mi

Top 46%
×3story building
+67ft-78ft

Overall

12168

Females

2990

F40-44

2990

15K→20K

9.3 - 12.4 mi

Top 42%
×5story building
+106ft-86ft

Overall

11155

Females

2488

F40-44

2488

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11262

Females

2493

F40-44

2493

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

10210

Females

2093

F40-44

2093

25K→30K

15.5 - 18.6 mi

Top 34%
×9story building
+181ft-148ft

Overall

9135

Females

1773

F40-44

1773

30K→20M

18.6 - 20.0 mi

Top 32%
×5story building
+64ft-50ft

Overall

8473

Females

1597

F40-44

1597

20M→21M

20.0 - 21.0 mi

Top 34%
×8story building
+106ft-24ft

Overall

9059

Females

1956

F40-44

1956

21M→35K

21.0 - 21.8 mi

Top 34%
×7story building
+17ft-86ft

Overall

9145

Females

1995

F40-44

1995

35K→23M

21.8 - 23.0 mi

Top 52%
×5story building
+23ft-63ft

Overall

13728

Females

4456

F40-44

4456

23M→24M

23.0 - 24.0 mi

Top 41%
×6story building
+12ft-82ft

Overall

11020

Females

3093

F40-44

3093

24M→40K

24.0 - 24.9 mi

Top 27%
×1story
+6ft-20ft

Overall

7263

Females

1482

F40-44

1482

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7020

Females

1443

F40-44

1443

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

8399

Females

2000

F40-44

2000

Passing Analysis

Category:
Athletes Passed
3746
Passed By
607
Net Change
+3139
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13814
5K → 10K497174+323#13814#13491
10K → 15K52449+475#13491#13016
15K → 20K54819+529#13016#12487
20K → Half797+72#12487#12415
Half → 25K3878+379#12415#12036
25K → 30K5947+587#12036#11449
30K → 20M2813+278#11449#11171
20M → 21M17416+158#11171#11013
21M → 35K977+90#11013#10923
35K → 23M49222-173#10923#11096
23M → 24M7265+7#11096#11089
24M → 40K1925+187#11089#10902
40K → 25.2M882+86#10902#10816
25.2M → Finish16423+141#10816#10675
TOTALS3746607+3139
📊

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