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BOSTON MARATHON 2023

Dana Ginsburg

MD

Bib: 22408 F

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
9:27/mi
29:21
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
9:37/mi
59:15
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
9:52/mi
1:29:55
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
10:03/mi
2:01:09
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
9:55/mi
2:07:55
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
10:24/mi
2:33:08
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
10:38/mi
3:06:11
↑ 181↓ 1480.2%
138 ft elev
20M
10:52/mi
3:20:57
↑ 64↓ 500.2%
148 ft elev
21M
11:11/mi
3:32:08
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
10:50/mi
3:40:14
↑ 17↓ 861.7%
156 ft elev
23M
10:54/mi
3:53:53
↑ 23↓ 630.6%
116 ft elev
24M
10:53/mi
4:04:46
↓ 821.3%
34 ft elev
40K· 24.85 mi
11:03/mi
4:14:13
↓ 200.3%
20 ft elev
25.2M
11:59/mi
4:18:21
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
10:53/mi
4:29:26
↑ 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
Time2:07:55
Pace9:45 /mi
2nd Half
Distance13.11 mi
Time2:21:31
Pace10:48 /mi
📊Positive Split: 10.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:5729:219:2729:21
9:27
-
10K
6.21 mi11:52:5159:159:3229:54
9:37
+0:10
15K
9.32 mi12:23:311:29:559:3930:40
9:52
+0:15
20K
12.43 mi12:54:452:01:099:4531:14
10:03
+0:11
Half
13.11 mi13:01:312:07:559:456:46
9:55
-0:08
25K
15.53 mi13:26:442:33:089:5125:13
10:24
+0:29
30K
18.64 mi13:59:473:06:119:5933:03
10:38
+0:14
20M
20.00 mi14:14:333:20:5710:0314:46
10:52
+0:14
21M
21.00 mi14:25:443:32:0810:0611:11
11:11
+0:19
35K
21.75 mi14:33:503:40:1410:088:06
10:50
-0:21
23M
23.00 mi14:47:293:53:5310:1013:39
10:54
+0:04
24M
24.00 mi14:58:224:04:4610:1210:53
10:53
-0:01
40K
24.85 mi15:07:494:14:1310:149:27
11:03
+0:10
25.2M
25.20 mi15:11:574:18:2110:154:08
11:59
+0:56
Finish
26.22 mi15:23:024:29:2610:1711:05
10:53
-1:06

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

9:27 /mi

Average Pace

10:17 /mi

Slowest Pace

11:59 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:33:08

57% of race

Time at Steady Pace

1:40:59

37% of race

Time at Slower Pace

15:19

6% of race

Average Pace: 10:17 /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 mi11:22:5729:219:2729:21
9:27
#21941
10K
6.21 mi11:52:5159:159:3229:54
9:37
#22421
15K
9.32 mi12:23:311:29:559:3930:40
9:52
#22721
20K
12.43 mi12:54:452:01:099:4531:14
10:03
#22798
Half
13.11 mi13:01:312:07:559:456:46
9:55
#22814
25K
15.53 mi13:26:442:33:089:5125:13
10:24
#22869
30K
18.64 mi13:59:473:06:119:5933:03
10:38
#22770
20M
20.00 mi14:14:333:20:5710:0314:46
10:52
#22739
21M
21.00 mi14:25:443:32:0810:0611:11
11:11
#22666
35K
21.75 mi14:33:503:40:1410:088:06
10:50
#22683
23M
23.00 mi14:47:293:53:5310:1013:39
10:54
#22631
24M
24.00 mi14:58:224:04:4610:1210:53
10:53
#22633
40K
24.85 mi15:07:494:14:1310:149:27
11:03
#22631
25.2M
25.20 mi15:11:574:18:2110:154:08
11:59
#22639
Finish
26.22 mi15:23:024:29:2610:1711:05
10:53
#22690
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi21941885688562324094669466
10K6.21 mi3.10 mi22421-4809061-2059061-2052286892689268
15K9.32 mi3.11 mi22721-3009196-1359196-1352324094669466
20K12.43 mi3.11 mi22798-779241-459241-452303393649364
Half13.11 mi0.68 mi22814-169246-59246-52312994249424
25K15.53 mi2.42 mi22869-559293-479293-472301693989398
30K18.64 mi3.11 mi22770+999270+239270+232249091809180
20M20.00 mi1.36 mi22739+319261+99261+92245992329232
21M21.00 mi1.00 mi22666+739234+279234+272124585998599
35K21.75 mi0.75 mi22683-179252-189252-182298495829582
23M23.00 mi1.25 mi22631+529228+249228+242216291489148
24M24.00 mi1.00 mi22633-29237-99237-92281995329532
40K24.85 mi0.85 mi22631+29246-99246-92246993849384
25.2M25.20 mi0.35 mi22639-89254-89254-82249793979397
Finish26.22 mi1.02 mi22690-519286-329286-32237531003110031

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23240

Females

9466

F45-49

9466

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

22868

Females

9268

F45-49

9268

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23240

Females

9466

F45-49

9466

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

23033

Females

9364

F45-49

9364

20K→Half

12.4 - 13.1 mi

Top 87%
×2story building
+19ft-37ft

Overall

23129

Females

9424

F45-49

9424

Half→25K

13.1 - 15.5 mi

Top 86%
×4story building
+66ft-88ft

Overall

23016

Females

9398

F45-49

9398

25K→30K

15.5 - 18.6 mi

Top 84%
×9story building
+181ft-148ft

Overall

22490

Females

9180

F45-49

9180

30K→20M

18.6 - 20.0 mi

Top 84%
×5story building
+64ft-50ft

Overall

22459

Females

9232

F45-49

9232

20M→21M

20.0 - 21.0 mi

Top 80%
×8story building
+106ft-24ft

Overall

21245

Females

8599

F45-49

8599

21M→35K

21.0 - 21.8 mi

Top 86%
×7story building
+17ft-86ft

Overall

22984

Females

9582

F45-49

9582

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

22162

Females

9148

F45-49

9148

23M→24M

23.0 - 24.0 mi

Top 86%
×6story building
+12ft-82ft

Overall

22819

Females

9532

F45-49

9532

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

22469

Females

9384

F45-49

9384

40K→25.2M

24.9 - 25.2 mi

Top 85%
×1story
+13ft-16ft

Overall

22497

Females

9397

F45-49

9397

25.2M→Finish

25.2 - 26.2 mi

Top 89%
×2story building
+22ft-21ft

Overall

23753

Females

10031

F45-49

10031

Passing Analysis

Category:
Athletes Passed
877
Passed By
1626
Net Change
-749
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21941
5K → 10K80560-480#21941#22421
10K → 15K66366-300#22421#22721
15K → 20K105182-77#22721#22798
20K → Half1935-16#22798#22814
Half → 25K67122-55#22814#22869
25K → 30K17677+99#22869#22770
30K → 20M7443+31#22770#22739
20M → 21M8512+73#22739#22666
21M → 35K3148-17#22666#22683
35K → 23M8230+52#22683#22631
23M → 24M3133-2#22631#22633
24M → 40K2725+2#22633#22631
40K → 25.2M1321-8#22631#22639
25.2M → Finish2172-51#22639#22690
TOTALS8771626-749

Passing Charts

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