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BOSTON MARATHON 2023

Laura Colantropo

Bib: 25113•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F45-49)
#0 / 1817
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
11:38/mi
36:09
↑ 97↓ 3451.5%
10K· 6.21 mi
11:53/mi
1:13:03
↑ 79↓ 1380.4%
15K· 9.32 mi
12:03/mi
1:50:30
↑ 67↓ 78
20K· 12.43 mi
12:20/mi
2:28:50
↑ 106↓ 860.1%
Half· 13.11 mi
11:54/mi
2:36:57
↑ 19↓ 370.5%
25K· 15.53 mi
12:56/mi
3:08:18
↑ 66↓ 880.2%
30K· 18.64 mi
13:07/mi
3:49:03
↑ 181↓ 1480.2%
20M
13:01/mi
4:06:44
↑ 64↓ 500.2%
21M
14:12/mi
4:20:56
↑ 106↓ 241.6%
35K· 21.75 mi
12:39/mi
4:30:24
↑ 17↓ 861.7%
23M
13:33/mi
4:47:22
↑ 23↓ 630.6%
24M
12:20/mi
4:59:42
↓ 821.3%
40K· 24.85 mi
12:33/mi
5:10:26
↓ 200.3%
25.2M
13:49/mi
5:15:12
↑ 13↓ 160.2%
Finish· 26.22 mi
11:49/mi
5:27:14
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:36:57
Pace11:58 /mi
2nd Half
Distance13.11 mi
Time2:50:17
Pace12:59 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:0736:0911:3836:09
11:38
-
10K
6.21 mi12:34:011:13:0311:4536:54
11:53
+0:15
15K
9.32 mi13:11:281:50:3011:5137:27
12:03
+0:10
20K
12.43 mi13:49:482:28:5011:5938:20
12:20
+0:17
Half
13.11 mi13:57:552:36:5711:588:07
11:54
-0:26
25K
15.53 mi14:29:163:08:1812:0731:21
12:56
+1:02
30K
18.64 mi15:10:013:49:0312:1740:45
13:07
+0:11
20M
20.00 mi15:27:424:06:4412:2017:41
13:01
-0:06
21M
21.00 mi15:41:544:20:5612:2614:12
14:12
+1:11
35K
21.75 mi15:51:224:30:2412:269:28
12:39
-1:33
23M
23.00 mi16:08:204:47:2212:3016:58
13:33
+0:54
24M
24.00 mi16:20:404:59:4212:2912:20
12:20
-1:13
40K
24.85 mi16:31:245:10:2612:2910:44
12:33
+0:13
25.2M
25.20 mi16:36:105:15:1212:304:46
13:49
+1:16
Finish
26.22 mi16:48:125:27:1412:2912:02
11:49
-2:00

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

11:38 /mi

Average Pace

12:29 /mi

Slowest Pace

14:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:10:39

40% of race

Time at Steady Pace

1:10:52

22% of race

Time at Slower Pace

2:05:43

38% of race

Average Pace: 12:29 /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 mi11:57:0736:0911:3836:09
11:38
#26293
10K
6.21 mi12:34:011:13:0311:4536:54
11:53
#26272
15K
9.32 mi13:11:281:50:3011:5137:27
12:03
#26213
20K
12.43 mi13:49:482:28:5011:5938:20
12:20
#26144
Half
13.11 mi13:57:552:36:5711:588:07
11:54
#26129
25K
15.53 mi14:29:163:08:1812:0731:21
12:56
#26095
30K
18.64 mi15:10:013:49:0312:1740:45
13:07
#26010
20M
20.00 mi15:27:424:06:4412:2017:41
13:01
#25966
21M
21.00 mi15:41:544:20:5612:2614:12
14:12
#25934
35K
21.75 mi15:51:224:30:2412:269:28
12:39
#25921
23M
23.00 mi16:08:204:47:2212:3016:58
13:33
#25899
24M
24.00 mi16:20:404:59:4212:2912:20
12:20
#25866
40K
24.85 mi16:31:245:10:2612:2910:44
12:33
#25836
25.2M
25.20 mi16:36:105:15:1212:304:46
13:49
#25827
Finish
26.22 mi16:48:125:27:1412:2912:02
11:49
#25805
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi26293112261122626093(Top 98%)11100(Top 97%)11100(Top 611%)
10K6.21 mi3.10 mi26272+2111208+1811208+1826208(Top 98%)11173(Top 98%)11173(Top 615%)
15K9.32 mi3.11 mi26213+5911174+3411174+3426093(Top 98%)11100(Top 97%)11100(Top 611%)
20K12.43 mi3.11 mi26144+6911129+4511129+4525854(Top 97%)10970(Top 96%)10970(Top 604%)
Half13.11 mi0.68 mi26129+1511119+1011119+1025813(Top 97%)10960(Top 96%)10960(Top 603%)
25K15.53 mi2.42 mi26095+3411101+1811101+1825831(Top 97%)10983(Top 96%)10983(Top 604%)
30K18.64 mi3.11 mi26010+8511057+4411057+4425506(Top 96%)10846(Top 95%)10846(Top 597%)
20M20.00 mi1.36 mi25966+4411035+2211035+2225196(Top 95%)10700(Top 94%)10700(Top 589%)
21M21.00 mi1.00 mi25934+3211024+1111024+1125209(Top 95%)10715(Top 94%)10715(Top 590%)
35K21.75 mi0.75 mi25921+1311020+411020+425316(Top 95%)10824(Top 95%)10824(Top 596%)
23M23.00 mi1.25 mi25899+2211009+1111009+1125543(Top 96%)10920(Top 96%)10920(Top 601%)
24M24.00 mi1.00 mi25866+3310991+1810991+1824892(Top 94%)10629(Top 93%)10629(Top 585%)
40K24.85 mi0.85 mi25836+3010980+1110980+1124510(Top 92%)10441(Top 91%)10441(Top 575%)
25.2M25.20 mi0.35 mi25827+910978+210978+224875(Top 93%)10634(Top 93%)10634(Top 585%)
Finish26.22 mi1.02 mi25805+2210969+910969+925052(Top 94%)10697(Top 94%)10697(Top 589%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 98%
×21story building
+97ft-345ft

Overall

26093

Females

11100

F45-49

11100

5K→10K

3.1 - 6.2 mi

Top 98%
×5story building
+79ft-138ft

Overall

26208

Females

11173

F45-49

11173

10K→15K

6.2 - 9.3 mi

Top 98%
×3story building
+67ft-78ft

Overall

26093

Females

11100

F45-49

11100

15K→20K

9.3 - 12.4 mi

Top 97%
×5story building
+106ft-86ft

Overall

25854

Females

10970

F45-49

10970

20K→Half

12.4 - 13.1 mi

Top 97%
×2story building
+19ft-37ft

Overall

25813

Females

10960

F45-49

10960

Half→25K

13.1 - 15.5 mi

Top 97%
×4story building
+66ft-88ft

Overall

25831

Females

10983

F45-49

10983

25K→30K

15.5 - 18.6 mi

Top 96%
×9story building
+181ft-148ft

Overall

25506

Females

10846

F45-49

10846

30K→20M

18.6 - 20.0 mi

Top 95%
×5story building
+64ft-50ft

Overall

25196

Females

10700

F45-49

10700

20M→21M

20.0 - 21.0 mi

Top 95%
×8story building
+106ft-24ft

Overall

25209

Females

10715

F45-49

10715

21M→35K

21.0 - 21.8 mi

Top 95%
×7story building
+17ft-86ft

Overall

25316

Females

10824

F45-49

10824

35K→23M

21.8 - 23.0 mi

Top 96%
×5story building
+23ft-63ft

Overall

25543

Females

10920

F45-49

10920

23M→24M

23.0 - 24.0 mi

Top 94%
×6story building
+12ft-82ft

Overall

24892

Females

10629

F45-49

10629

24M→40K

24.0 - 24.9 mi

Top 92%
×1story
+6ft-20ft

Overall

24510

Females

10441

F45-49

10441

40K→25.2M

24.9 - 25.2 mi

Top 93%
×1story
+13ft-16ft

Overall

24875

Females

10634

F45-49

10634

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

25052

Females

10697

F45-49

10697

Passing Analysis

Category:
Athletes Passed
634
Passed By
146
Net Change
+488
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26293
5K → 10K6847+21#26293#26272
10K → 15K7617+59#26272#26213
15K → 20K7910+69#26213#26144
20K → Half194+15#26144#26129
Half → 25K5420+34#26129#26095
25K → 30K9914+85#26095#26010
30K → 20M484+44#26010#25966
20M → 21M419+32#25966#25934
21M → 35K174+13#25934#25921
35K → 23M264+22#25921#25899
23M → 24M363+33#25899#25866
24M → 40K333+30#25866#25836
40K → 25.2M101+9#25836#25827
25.2M → Finish286+22#25827#25805
TOTALS634146+488
📊

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