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BOSTON MARATHON 2023

Erica Croce

Bib: 29769 F IT

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

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
9:37/mi
29:53
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
9:06/mi
58:09
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:14/mi
1:26:51
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:22/mi
1:55:56
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
9:21/mi
2:02:19
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:40/mi
2:25:45
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
10:02/mi
2:56:56
↑ 181↓ 1480.2%
138 ft elev
20M
10:12/mi
3:10:48
↑ 64↓ 500.2%
148 ft elev
21M
10:55/mi
3:21:43
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:32/mi
3:28:51
↑ 17↓ 861.7%
156 ft elev
23M
10:26/mi
3:41:55
↑ 23↓ 630.6%
116 ft elev
24M
10:10/mi
3:52:05
↓ 821.3%
34 ft elev
40K· 24.85 mi
10:36/mi
4:01:09
↓ 200.3%
20 ft elev
25.2M
12:19/mi
4:05:24
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:42/mi
4:15:17
↑ 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
Time2:02:19
Pace9:20 /mi
2nd Half
Distance13.11 mi
Time2:12:58
Pace10:09 /mi
📊Positive Split: 8.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:48:0529:539:3729:53
9:37
-
10K
6.21 mi12:16:2158:099:2228:16
9:06
-0:31
15K
9.32 mi12:45:031:26:519:1928:42
9:14
+0:08
20K
12.43 mi13:14:081:55:569:2029:05
9:22
+0:08
Half
13.11 mi13:20:312:02:199:206:23
9:21
-0:01
25K
15.53 mi13:43:572:25:459:2323:26
9:40
+0:19
30K
18.64 mi14:15:082:56:569:2931:11
10:02
+0:22
20M
20.00 mi14:29:003:10:489:3213:52
10:12
+0:10
21M
21.00 mi14:39:553:21:439:3610:55
10:55
+0:43
35K
21.75 mi14:47:033:28:519:367:08
9:32
-1:23
23M
23.00 mi15:00:073:41:559:3913:04
10:26
+0:54
24M
24.00 mi15:10:173:52:059:4010:10
10:10
-0:16
40K
24.85 mi15:19:214:01:099:429:04
10:36
+0:26
25.2M
25.20 mi15:23:364:05:249:444:15
12:19
+1:43
Finish
26.22 mi15:33:294:15:179:459:53
9:42
-2:37

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

9:06 /mi

Average Pace

9:45 /mi

Slowest Pace

12:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

56:58

22% of race

Time at Steady Pace

2:16:59

54% of race

Time at Slower Pace

1:01:20

24% of race

Average Pace: 9:44 /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 mi11:48:0529:539:3729:53
9:37
#22434
10K
6.21 mi12:16:2158:099:2228:16
9:06
#21910
15K
9.32 mi12:45:031:26:519:1928:42
9:14
#21739
20K
12.43 mi13:14:081:55:569:2029:05
9:22
#21607
Half
13.11 mi13:20:312:02:199:206:23
9:21
#21604
25K
15.53 mi13:43:572:25:459:2323:26
9:40
#21549
30K
18.64 mi14:15:082:56:569:2931:11
10:02
#21459
20M
20.00 mi14:29:003:10:489:3213:52
10:12
#21426
21M
21.00 mi14:39:553:21:439:3610:55
10:55
#21362
35K
21.75 mi14:47:033:28:519:367:08
9:32
#21307
23M
23.00 mi15:00:073:41:559:3913:04
10:26
#21284
24M
24.00 mi15:10:173:52:059:4010:10
10:10
#21281
40K
24.85 mi15:19:214:01:099:429:04
10:36
#21284
25.2M
25.20 mi15:23:364:05:249:444:15
12:19
#21316
Finish
26.22 mi15:33:294:15:179:459:53
9:42
#21294
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi224349099909921439(Top 81%)8470(Top 74%)8470(Top 466%)
10K6.21 mi3.10 mi21910+5248799+3008799+30021266(Top 80%)8425(Top 74%)8425(Top 464%)
15K9.32 mi3.11 mi21739+1718695+1048695+10421439(Top 81%)8470(Top 74%)8470(Top 466%)
20K12.43 mi3.11 mi21607+1328613+828613+8221135(Top 79%)8312(Top 73%)8312(Top 457%)
Half13.11 mi0.68 mi21604+38610+38610+321709(Top 82%)8634(Top 76%)8634(Top 475%)
25K15.53 mi2.42 mi21549+558574+368574+3621346(Top 80%)8465(Top 74%)8465(Top 466%)
30K18.64 mi3.11 mi21459+908534+408534+4021138(Top 79%)8425(Top 74%)8425(Top 464%)
20M20.00 mi1.36 mi21426+338527+78527+721033(Top 79%)8429(Top 74%)8429(Top 464%)
21M21.00 mi1.00 mi21362+648506+218506+2120646(Top 78%)8264(Top 72%)8264(Top 455%)
35K21.75 mi0.75 mi21307+558485+218485+2119993(Top 75%)7937(Top 69%)7937(Top 437%)
23M23.00 mi1.25 mi21284+238489-48489-421169(Top 80%)8612(Top 75%)8612(Top 474%)
24M24.00 mi1.00 mi21281+38497-88497-821247(Top 80%)8694(Top 76%)8694(Top 478%)
40K24.85 mi0.85 mi21284-38506-98506-921476(Top 81%)8884(Top 78%)8884(Top 489%)
25.2M25.20 mi0.35 mi21316-328527-218527-2123022(Top 86%)9668(Top 85%)9668(Top 532%)
Finish26.22 mi1.02 mi21294+228524+38524+320813(Top 78%)8474(Top 74%)8474(Top 466%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21story building
+97ft-345ft

Overall

21439

Females

8470

F45-49

8470

5K→10K

3.1 - 6.2 mi

Top 80%
×5story building
+79ft-138ft

Overall

21266

Females

8425

F45-49

8425

10K→15K

6.2 - 9.3 mi

Top 81%
×3story building
+67ft-78ft

Overall

21439

Females

8470

F45-49

8470

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

21135

Females

8312

F45-49

8312

20K→Half

12.4 - 13.1 mi

Top 82%
×2story building
+19ft-37ft

Overall

21709

Females

8634

F45-49

8634

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

21346

Females

8465

F45-49

8465

25K→30K

15.5 - 18.6 mi

Top 79%
×9story building
+181ft-148ft

Overall

21138

Females

8425

F45-49

8425

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

21033

Females

8429

F45-49

8429

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

20646

Females

8264

F45-49

8264

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

19993

Females

7937

F45-49

7937

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

21169

Females

8612

F45-49

8612

23M→24M

23.0 - 24.0 mi

Top 80%
×6story building
+12ft-82ft

Overall

21247

Females

8694

F45-49

8694

24M→40K

24.0 - 24.9 mi

Top 81%
×1story
+6ft-20ft

Overall

21476

Females

8884

F45-49

8884

40K→25.2M

24.9 - 25.2 mi

Top 86%
×1story
+13ft-16ft

Overall

23022

Females

9668

F45-49

9668

25.2M→Finish

25.2 - 26.2 mi

Top 78%
×2story building
+22ft-21ft

Overall

20813

Females

8474

F45-49

8474

Passing Analysis

Category:
Athletes Passed
1849
Passed By
709
Net Change
+1140
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22434
5K → 10K59975+524#22434#21910
10K → 15K26392+171#21910#21739
15K → 20K19260+132#21739#21607
20K → Half3229+3#21607#21604
Half → 25K13176+55#21604#21549
25K → 30K16373+90#21549#21459
30K → 20M9461+33#21459#21426
20M → 21M9127+64#21426#21362
21M → 35K605+55#21362#21307
35K → 23M7855+23#21307#21284
23M → 24M4542+3#21284#21281
24M → 40K4346-3#21281#21284
40K → 25.2M1345-32#21284#21316
25.2M → Finish4523+22#21316#21294
TOTALS1849709+1140
📊

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