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BOSTON MARATHON 2023

Joanne Gregg

Bib: 19179•F

AZ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 49%
Masters (Masters Women)
#0 / 6539
Top 38%
Division (F50-54)
#0 / 1207
Top 31%
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
7:54/mi
24:33
↑ 97↓ 3451.5%
10K· 6.21 mi
7:43/mi
48:33
↑ 79↓ 1380.4%
15K· 9.32 mi
8:06/mi
1:13:43
↑ 67↓ 78
20K· 12.43 mi
8:28/mi
1:40:02
↑ 106↓ 860.1%
Half· 13.11 mi
8:23/mi
1:45:45
↑ 19↓ 370.5%
25K· 15.53 mi
8:53/mi
2:07:17
↑ 66↓ 880.2%
30K· 18.64 mi
9:18/mi
2:36:10
↑ 181↓ 1480.2%
20M
9:24/mi
2:48:57
↑ 64↓ 500.2%
21M
10:00/mi
2:58:57
↑ 106↓ 241.6%
35K· 21.75 mi
8:17/mi
3:05:09
↑ 17↓ 861.7%
23M
8:49/mi
3:16:11
↑ 23↓ 630.6%
24M
8:37/mi
3:24:48
↓ 821.3%
40K· 24.85 mi
8:49/mi
3:32:20
↓ 200.3%
25.2M
9:46/mi
3:35:42
↑ 13↓ 160.2%
Finish· 26.22 mi
8:57/mi
3:44:49
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:45
Pace8:04 /mi
2nd Half
Distance13.11 mi
Time1:59:04
Pace9:05 /mi
📊Positive Split: 12.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:1624:337:5424:33
7:54
-
10K
6.21 mi11:40:1648:337:4924:00
7:43
-0:11
15K
9.32 mi12:05:261:13:437:5525:10
8:06
+0:23
20K
12.43 mi12:31:451:40:028:0326:19
8:28
+0:22
Half
13.11 mi12:37:281:45:458:045:43
8:23
-0:05
25K
15.53 mi12:59:002:07:178:1221:32
8:53
+0:30
30K
18.64 mi13:27:532:36:108:2328:53
9:18
+0:25
20M
20.00 mi13:40:402:48:578:2712:47
9:24
+0:06
21M
21.00 mi13:50:402:58:578:3110:00
10:00
+0:36
35K
21.75 mi13:56:523:05:098:316:12
8:17
-1:43
23M
23.00 mi14:07:543:16:118:3211:02
8:49
+0:32
24M
24.00 mi14:16:313:24:488:328:37
8:37
-0:12
40K
24.85 mi14:24:033:32:208:337:32
8:49
+0:12
25.2M
25.20 mi14:27:253:35:428:343:22
9:46
+0:57
Finish
26.22 mi14:36:323:44:498:359:07
8:57
-0:49

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

7:43 /mi

Average Pace

8:35 /mi

Slowest Pace

10:00 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:57

50% of race

Time at Steady Pace

57:50

26% of race

Time at Slower Pace

55:02

24% of race

Average Pace: 8:34 /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 mi11:16:1624:337:5424:33
7:54
#13278
10K
6.21 mi11:40:1648:337:4924:00
7:43
#12835
15K
9.32 mi12:05:261:13:437:5525:10
8:06
#13654
20K
12.43 mi12:31:451:40:028:0326:19
8:28
#14481
Half
13.11 mi12:37:281:45:458:045:43
8:23
#14633
25K
15.53 mi12:59:002:07:178:1221:32
8:53
#15316
30K
18.64 mi13:27:532:36:108:2328:53
9:18
#16002
20M
20.00 mi13:40:402:48:578:2712:47
9:24
#16198
21M
21.00 mi13:50:402:58:578:3110:00
10:00
#16322
35K
21.75 mi13:56:523:05:098:316:12
8:17
#16239
23M
23.00 mi14:07:543:16:118:3211:02
8:49
#16137
24M
24.00 mi14:16:313:24:488:328:37
8:37
#16079
40K
24.85 mi14:24:033:32:208:337:32
8:49
#16039
25.2M
25.20 mi14:27:253:35:428:343:22
9:46
#16043
Finish
26.22 mi14:36:323:44:498:359:07
8:57
#16132
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi132783598359815188(Top 57%)4788(Top 42%)4788(Top 397%)
10K6.21 mi3.10 mi12835+4433341+2573341+25712492(Top 47%)3148(Top 28%)3148(Top 261%)
15K9.32 mi3.11 mi13654-8193855-5143855-51415188(Top 57%)4788(Top 42%)4788(Top 397%)
20K12.43 mi3.11 mi14481-8274360-5054360-50516677(Top 63%)5742(Top 50%)5742(Top 476%)
Half13.11 mi0.68 mi14633-1524453-934453-9317035(Top 64%)5914(Top 52%)5914(Top 490%)
25K15.53 mi2.42 mi15316-6834909-4564909-45618364(Top 69%)6759(Top 59%)6759(Top 560%)
30K18.64 mi3.11 mi16002-6865377-4685377-46818620(Top 70%)6983(Top 61%)6983(Top 579%)
20M20.00 mi1.36 mi16198-1965518-1415518-14118484(Top 69%)7014(Top 61%)7014(Top 581%)
21M21.00 mi1.00 mi16322-1245611-935611-9318028(Top 68%)6776(Top 59%)6776(Top 561%)
35K21.75 mi0.75 mi16239+835571+405571+4014080(Top 53%)4616(Top 40%)4616(Top 382%)
23M23.00 mi1.25 mi16137+1025530+415530+4115079(Top 57%)5225(Top 46%)5225(Top 433%)
24M24.00 mi1.00 mi16079+585513+175513+1715193(Top 57%)5344(Top 47%)5344(Top 443%)
40K24.85 mi0.85 mi16039+405500+135500+1315160(Top 57%)5390(Top 47%)5390(Top 447%)
25.2M25.20 mi0.35 mi16043-45503-35503-316408(Top 62%)6102(Top 53%)6102(Top 506%)
Finish26.22 mi1.02 mi16132-895570-675570-6717715(Top 67%)6759(Top 59%)6759(Top 560%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21story building
+97ft-345ft

Overall

15188

Females

4788

F50-54

4788

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12492

Females

3148

F50-54

3148

10K→15K

6.2 - 9.3 mi

Top 57%
×3story building
+67ft-78ft

Overall

15188

Females

4788

F50-54

4788

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

16677

Females

5742

F50-54

5742

20K→Half

12.4 - 13.1 mi

Top 64%
×2story building
+19ft-37ft

Overall

17035

Females

5914

F50-54

5914

Half→25K

13.1 - 15.5 mi

Top 69%
×4story building
+66ft-88ft

Overall

18364

Females

6759

F50-54

6759

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

18620

Females

6983

F50-54

6983

30K→20M

18.6 - 20.0 mi

Top 69%
×5story building
+64ft-50ft

Overall

18484

Females

7014

F50-54

7014

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

18028

Females

6776

F50-54

6776

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14080

Females

4616

F50-54

4616

35K→23M

21.8 - 23.0 mi

Top 57%
×5story building
+23ft-63ft

Overall

15079

Females

5225

F50-54

5225

23M→24M

23.0 - 24.0 mi

Top 57%
×6story building
+12ft-82ft

Overall

15193

Females

5344

F50-54

5344

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

15160

Females

5390

F50-54

5390

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16408

Females

6102

F50-54

6102

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2story building
+22ft-21ft

Overall

17715

Females

6759

F50-54

6759

Passing Analysis

Category:
Athletes Passed
1297
Passed By
4151
Net Change
-2854
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13278
5K → 10K593150+443#13278#12835
10K → 15K35854-819#12835#13654
15K → 20K46873-827#13654#14481
20K → Half1153-152#14481#14633
Half → 25K25708-683#14633#15316
25K → 30K46732-686#15316#16002
30K → 20M40236-196#16002#16198
20M → 21M41165-124#16198#16322
21M → 35K9411+83#16322#16239
35K → 23M14341+102#16239#16137
23M → 24M9032+58#16137#16079
24M → 40K7535+40#16079#16039
40K → 25.2M2529-4#16039#16043
25.2M → Finish43132-89#16043#16132
TOTALS12974151-2854
📊

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