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BOSTON MARATHON 2023

Terri (ironwahhwahh) Anderson

Bib: 24357•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F65-69)
#0 / 221
Top 43%
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
9:52/mi
30:39
↑ 97↓ 3451.5%
10K· 6.21 mi
9:55/mi
1:01:29
↑ 79↓ 1380.4%
15K· 9.32 mi
9:54/mi
1:32:13
↑ 67↓ 78
20K· 12.43 mi
9:56/mi
2:03:05
↑ 106↓ 860.1%
Half· 13.11 mi
10:02/mi
2:09:56
↑ 19↓ 370.5%
25K· 15.53 mi
10:03/mi
2:34:19
↑ 66↓ 880.2%
30K· 18.64 mi
10:13/mi
3:06:03
↑ 181↓ 1480.2%
20M
10:23/mi
3:20:09
↑ 64↓ 500.2%
21M
10:50/mi
3:30:59
↑ 106↓ 241.6%
35K· 21.75 mi
9:57/mi
3:38:26
↑ 17↓ 861.7%
23M
10:01/mi
3:50:58
↑ 23↓ 630.6%
24M
9:40/mi
4:00:38
↓ 821.3%
40K· 24.85 mi
10:08/mi
4:09:18
↓ 200.3%
25.2M
11:07/mi
4:13:08
↑ 13↓ 160.2%
Finish· 26.22 mi
9:57/mi
4:23:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:09:56
Pace9:55 /mi
2nd Half
Distance13.11 mi
Time2:13:20
Pace10:10 /mi
📊Positive Split: 2.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:5130:399:5230:39
9:52
-
10K
6.21 mi12:16:411:01:299:5430:50
9:55
+0:03
15K
9.32 mi12:47:251:32:139:5430:44
9:54
-0:01
20K
12.43 mi13:18:172:03:059:5430:52
9:56
+0:02
Half
13.11 mi13:25:082:09:569:556:51
10:02
+0:06
25K
15.53 mi13:49:312:34:199:5624:23
10:03
+0:01
30K
18.64 mi14:21:153:06:039:5931:44
10:13
+0:10
20M
20.00 mi14:35:213:20:0910:0014:06
10:23
+0:10
21M
21.00 mi14:46:113:30:5910:0310:50
10:50
+0:27
35K
21.75 mi14:53:383:38:2610:037:27
9:57
-0:53
23M
23.00 mi15:06:103:50:5810:0312:32
10:01
+0:04
24M
24.00 mi15:15:504:00:3810:029:40
9:40
-0:21
40K
24.85 mi15:24:304:09:1810:028:40
10:08
+0:28
25.2M
25.20 mi15:28:204:13:0810:033:50
11:07
+0:59
Finish
26.22 mi15:38:284:23:1610:0310:08
9:57
-1:10

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

9:40 /mi

Average Pace

10:03 /mi

Slowest Pace

11:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:08:36

94% of race

Time at Steady Pace

14:40

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:02 /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 mi11:45:5130:399:5230:39
9:52
#23105
10K
6.21 mi12:16:411:01:299:5430:50
9:55
#23377
15K
9.32 mi12:47:251:32:139:5430:44
9:54
#23350
20K
12.43 mi13:18:172:03:059:5430:52
9:56
#23205
Half
13.11 mi13:25:082:09:569:556:51
10:02
#23212
25K
15.53 mi13:49:312:34:199:5624:23
10:03
#23034
30K
18.64 mi14:21:153:06:039:5931:44
10:13
#22760
20M
20.00 mi14:35:213:20:0910:0014:06
10:23
#22657
21M
21.00 mi14:46:113:30:5910:0310:50
10:50
#22538
35K
21.75 mi14:53:383:38:2610:037:27
9:57
#22483
23M
23.00 mi15:06:103:50:5810:0312:32
10:01
#22343
24M
24.00 mi15:15:504:00:3810:029:40
9:40
#22252
40K
24.85 mi15:24:304:09:1810:028:40
10:08
#22184
25.2M
25.20 mi15:28:204:13:0810:033:50
11:07
#22157
Finish
26.22 mi15:38:284:23:1610:0310:08
9:57
#22133
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi231059450945023287(Top 87%)9487(Top 83%)9487(Top 4293%)
10K6.21 mi3.10 mi23377-2729559-1099559-10923546(Top 88%)9649(Top 84%)9649(Top 4366%)
15K9.32 mi3.11 mi23350+279531+289531+2823287(Top 87%)9487(Top 83%)9487(Top 4293%)
20K12.43 mi3.11 mi23205+1459459+729459+7222741(Top 85%)9212(Top 81%)9212(Top 4168%)
Half13.11 mi0.68 mi23212-79464-59464-523361(Top 88%)9544(Top 84%)9544(Top 4319%)
25K15.53 mi2.42 mi23034+1789372+929372+9222343(Top 84%)9025(Top 79%)9025(Top 4084%)
30K18.64 mi3.11 mi22760+2749264+1089264+10821557(Top 81%)8659(Top 76%)8659(Top 3918%)
20M20.00 mi1.36 mi22657+1039225+399225+3921475(Top 81%)8687(Top 76%)8687(Top 3931%)
21M21.00 mi1.00 mi22538+1199160+659160+6520475(Top 77%)8185(Top 72%)8185(Top 3704%)
35K21.75 mi0.75 mi22483+559135+259135+2521174(Top 80%)8588(Top 75%)8588(Top 3886%)
23M23.00 mi1.25 mi22343+1409063+729063+7220034(Top 75%)7979(Top 70%)7979(Top 3610%)
24M24.00 mi1.00 mi22252+919019+449019+4419804(Top 74%)7875(Top 69%)7875(Top 3563%)
40K24.85 mi0.85 mi22184+688987+328987+3220356(Top 76%)8261(Top 72%)8261(Top 3738%)
25.2M25.20 mi0.35 mi22157+278980+78980+720754(Top 78%)8460(Top 74%)8460(Top 3828%)
Finish26.22 mi1.02 mi22133+248979+18979+121622(Top 81%)8922(Top 78%)8922(Top 4037%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

23287

Females

9487

F65-69

9487

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

23546

Females

9649

F65-69

9649

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

23287

Females

9487

F65-69

9487

15K→20K

9.3 - 12.4 mi

Top 85%
×5story building
+106ft-86ft

Overall

22741

Females

9212

F65-69

9212

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

23361

Females

9544

F65-69

9544

Half→25K

13.1 - 15.5 mi

Top 84%
×4story building
+66ft-88ft

Overall

22343

Females

9025

F65-69

9025

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

21557

Females

8659

F65-69

8659

30K→20M

18.6 - 20.0 mi

Top 81%
×5story building
+64ft-50ft

Overall

21475

Females

8687

F65-69

8687

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

20475

Females

8185

F65-69

8185

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

21174

Females

8588

F65-69

8588

35K→23M

21.8 - 23.0 mi

Top 75%
×5story building
+23ft-63ft

Overall

20034

Females

7979

F65-69

7979

23M→24M

23.0 - 24.0 mi

Top 74%
×6story building
+12ft-82ft

Overall

19804

Females

7875

F65-69

7875

24M→40K

24.0 - 24.9 mi

Top 76%
×1story
+6ft-20ft

Overall

20356

Females

8261

F65-69

8261

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20754

Females

8460

F65-69

8460

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2story building
+22ft-21ft

Overall

21622

Females

8922

F65-69

8922

Passing Analysis

Category:
Athletes Passed
1677
Passed By
705
Net Change
+972
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23105
5K → 10K111383-272#23105#23377
10K → 15K151124+27#23377#23350
15K → 20K19348+145#23350#23205
20K → Half2532-7#23205#23212
Half → 25K20729+178#23212#23034
25K → 30K28814+274#23034#22760
30K → 20M11512+103#22760#22657
20M → 21M12910+119#22657#22538
21M → 35K616+55#22538#22483
35K → 23M15010+140#22483#22343
23M → 24M954+91#22343#22252
24M → 40K746+68#22252#22184
40K → 25.2M336+27#22184#22157
25.2M → Finish4521+24#22157#22133
TOTALS1677705+972
📊

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