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BOSTON MARATHON 2023

Lorrie Ross

ON

Bib: 23207 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F60-64)
#0 / 527
Top 23%
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
8:53/mi
27:37
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:49/mi
55:00
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:50/mi
1:22:26
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:55/mi
1:50:08
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:48/mi
1:56:08
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
8:53/mi
2:17:40
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:09/mi
2:46:05
↑ 181↓ 1480.2%
138 ft elev
20M
9:13/mi
2:58:36
↑ 64↓ 500.2%
148 ft elev
21M
9:46/mi
3:08:22
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:04/mi
3:15:09
↑ 17↓ 861.7%
156 ft elev
23M
9:25/mi
3:26:57
↑ 23↓ 630.6%
116 ft elev
24M
9:21/mi
3:36:18
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:19/mi
3:44:16
↓ 200.3%
20 ft elev
25.2M
10:06/mi
3:47:45
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:16/mi
3:57:12
↑ 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
Time1:56:08
Pace8:52 /mi
2nd Half
Distance13.11 mi
Time2:01:04
Pace9:14 /mi
📊Positive Split: 4.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:2227:378:5327:37
8:53
-
10K
6.21 mi11:49:4555:008:5127:23
8:49
-0:04
15K
9.32 mi12:17:111:22:268:5127:26
8:50
+0:01
20K
12.43 mi12:44:531:50:088:5227:42
8:55
+0:05
Half
13.11 mi12:50:531:56:088:526:00
8:48
-0:07
25K
15.53 mi13:12:252:17:408:5221:32
8:53
+0:05
30K
18.64 mi13:40:502:46:058:5528:25
9:09
+0:16
20M
20.00 mi13:53:212:58:368:5612:31
9:13
+0:04
21M
21.00 mi14:03:073:08:228:589:46
9:46
+0:33
35K
21.75 mi14:09:543:15:098:586:47
9:04
-0:42
23M
23.00 mi14:21:423:26:579:0011:48
9:25
+0:21
24M
24.00 mi14:31:033:36:189:019:21
9:21
-0:04
40K
24.85 mi14:39:013:44:169:017:58
9:19
-0:02
25.2M
25.20 mi14:42:303:47:459:023:29
10:06
+0:47
Finish
26.22 mi14:51:573:57:129:039:27
9:16
-0:50

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

8:48 /mi

Average Pace

9:03 /mi

Slowest Pace

10:06 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:43:57

94% of race

Time at Steady Pace

13:15

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 9:03 /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 mi11:22:2227:378:5327:37
8:53
#19938
10K
6.21 mi11:49:4555:008:5127:23
8:49
#19937
15K
9.32 mi12:17:111:22:268:5127:26
8:50
#19835
20K
12.43 mi12:44:531:50:088:5227:42
8:55
#19645
Half
13.11 mi12:50:531:56:088:526:00
8:48
#19649
25K
15.53 mi13:12:252:17:408:5221:32
8:53
#19414
30K
18.64 mi13:40:502:46:058:5528:25
9:09
#19156
20M
20.00 mi13:53:212:58:368:5612:31
9:13
#19027
21M
21.00 mi14:03:073:08:228:589:46
9:46
#18913
35K
21.75 mi14:09:543:15:098:586:47
9:04
#18889
23M
23.00 mi14:21:423:26:579:0011:48
9:25
#18822
24M
24.00 mi14:31:033:36:189:019:21
9:21
#18807
40K
24.85 mi14:39:013:44:169:017:58
9:19
#18779
25.2M
25.20 mi14:42:303:47:459:023:29
10:06
#18755
Finish
26.22 mi14:51:573:57:129:039:27
9:16
#18805
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi199387771777119676(Top 74%)7493(Top 66%)7493(Top 1422%)
10K6.21 mi3.10 mi19937+17731+407731+4020014(Top 75%)7708(Top 67%)7708(Top 1463%)
15K9.32 mi3.11 mi19835+1027640+917640+9119676(Top 74%)7493(Top 66%)7493(Top 1422%)
20K12.43 mi3.11 mi19645+1907509+1317509+13119290(Top 72%)7261(Top 64%)7261(Top 1378%)
Half13.11 mi0.68 mi19649-47510-17510-119489(Top 73%)7367(Top 64%)7367(Top 1398%)
25K15.53 mi2.42 mi19414+2357367+1437367+14318377(Top 69%)6772(Top 59%)6772(Top 1285%)
30K18.64 mi3.11 mi19156+2587230+1377230+13717922(Top 67%)6607(Top 58%)6607(Top 1254%)
20M20.00 mi1.36 mi19027+1297177+537177+5317627(Top 66%)6539(Top 57%)6539(Top 1241%)
21M21.00 mi1.00 mi18913+1147116+617116+6117152(Top 64%)6287(Top 55%)6287(Top 1193%)
35K21.75 mi0.75 mi18889+247113+37113+318207(Top 68%)6959(Top 61%)6959(Top 1320%)
23M23.00 mi1.25 mi18822+677088+257088+2518035(Top 68%)6888(Top 60%)6888(Top 1307%)
24M24.00 mi1.00 mi18807+157090-27090-218666(Top 70%)7258(Top 64%)7258(Top 1377%)
40K24.85 mi0.85 mi18779+287088+27088+217634(Top 66%)6764(Top 59%)6764(Top 1283%)
25.2M25.20 mi0.35 mi18755+247080+87080+817827(Top 67%)6877(Top 60%)6877(Top 1305%)
Finish26.22 mi1.02 mi18805-507105-257105-2519265(Top 72%)7590(Top 66%)7590(Top 1440%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

19676

Females

7493

F60-64

7493

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

20014

Females

7708

F60-64

7708

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

19676

Females

7493

F60-64

7493

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

19290

Females

7261

F60-64

7261

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

19489

Females

7367

F60-64

7367

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

18377

Females

6772

F60-64

6772

25K→30K

15.5 - 18.6 mi

Top 67%
×9story building
+181ft-148ft

Overall

17922

Females

6607

F60-64

6607

30K→20M

18.6 - 20.0 mi

Top 66%
×5story building
+64ft-50ft

Overall

17627

Females

6539

F60-64

6539

20M→21M

20.0 - 21.0 mi

Top 64%
×8story building
+106ft-24ft

Overall

17152

Females

6287

F60-64

6287

21M→35K

21.0 - 21.8 mi

Top 68%
×7story building
+17ft-86ft

Overall

18207

Females

6959

F60-64

6959

35K→23M

21.8 - 23.0 mi

Top 68%
×5story building
+23ft-63ft

Overall

18035

Females

6888

F60-64

6888

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

18666

Females

7258

F60-64

7258

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

17634

Females

6764

F60-64

6764

40K→25.2M

24.9 - 25.2 mi

Top 67%
×1story
+13ft-16ft

Overall

17827

Females

6877

F60-64

6877

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2story building
+22ft-21ft

Overall

19265

Females

7590

F60-64

7590

Passing Analysis

Category:
Athletes Passed
2059
Passed By
926
Net Change
+1133
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19938
5K → 10K301300+1#19938#19937
10K → 15K236134+102#19937#19835
15K → 20K27787+190#19835#19645
20K → Half3337-4#19645#19649
Half → 25K25520+235#19649#19414
25K → 30K31254+258#19414#19156
30K → 20M15324+129#19156#19027
20M → 21M14329+114#19027#18913
21M → 35K4824+24#18913#18889
35K → 23M11043+67#18889#18822
23M → 24M6651+15#18822#18807
24M → 40K6234+28#18807#18779
40K → 25.2M3915+24#18779#18755
25.2M → Finish2474-50#18755#18805
TOTALS2059926+1133
📊

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