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BOSTON MARATHON 2023

Amy Littlefield

Bib: 15241•F

CT

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 25%
Gender (Female)
#0 / 11423
Top 7%
Division (F18-39)
#0 / 4884
Top 13%
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
7:00/mi
21:45
↑ 97↓ 3451.5%
10K· 6.21 mi
6:55/mi
43:15
↑ 79↓ 1380.4%
15K· 9.32 mi
7:15/mi
1:05:48
↑ 67↓ 78
20K· 12.43 mi
7:22/mi
1:28:42
↑ 106↓ 860.1%
Half· 13.11 mi
7:12/mi
1:33:37
↑ 19↓ 370.5%
25K· 15.53 mi
7:22/mi
1:51:28
↑ 66↓ 880.2%
30K· 18.64 mi
7:34/mi
2:15:00
↑ 181↓ 1480.2%
20M
7:24/mi
2:25:03
↑ 64↓ 500.2%
21M
7:58/mi
2:33:01
↑ 106↓ 241.6%
35K· 21.75 mi
7:12/mi
2:38:24
↑ 17↓ 861.7%
23M
7:39/mi
2:47:59
↑ 23↓ 630.6%
24M
7:03/mi
2:55:02
↓ 821.3%
40K· 24.85 mi
7:16/mi
3:01:15
↓ 200.3%
25.2M
7:44/mi
3:03:55
↑ 13↓ 160.2%
Finish· 26.22 mi
6:52/mi
3:10:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:37
Pace7:08 /mi
2nd Half
Distance13.11 mi
Time1:37:18
Pace7:25 /mi
📊Positive Split: 3.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:37:4721:457:0021:45
7:00
-
10K
6.21 mi11:59:1743:156:5821:30
6:55
-0:05
15K
9.32 mi12:21:501:05:487:0422:33
7:15
+0:20
20K
12.43 mi12:44:441:28:427:0822:54
7:22
+0:07
Half
13.11 mi12:49:391:33:377:084:55
7:12
-0:10
25K
15.53 mi13:07:301:51:287:1117:51
7:22
+0:10
30K
18.64 mi13:31:022:15:007:1523:32
7:34
+0:12
20M
20.00 mi13:41:052:25:037:1510:03
7:24
-0:10
21M
21.00 mi13:49:032:33:017:177:58
7:58
+0:34
35K
21.75 mi13:54:262:38:247:175:23
7:12
-0:46
23M
23.00 mi14:04:012:47:597:189:35
7:39
+0:27
24M
24.00 mi14:11:042:55:027:187:03
7:03
-0:36
40K
24.85 mi14:17:173:01:157:186:13
7:16
+0:13
25.2M
25.20 mi14:19:573:03:557:182:40
7:44
+0:28
Finish
26.22 mi14:26:573:10:557:177:00
6:52
-0:52

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

6:52 /mi

Average Pace

7:17 /mi

Slowest Pace

7:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:27:10

77% of race

Time at Steady Pace

43:45

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:17 /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 mi11:37:4721:457:0021:45
7:00
#6264
10K
6.21 mi11:59:1743:156:5821:30
6:55
#6287
15K
9.32 mi12:21:501:05:487:0422:33
7:15
#6840
20K
12.43 mi12:44:441:28:427:0822:54
7:22
#7146
Half
13.11 mi12:49:391:33:377:084:55
7:12
#7178
25K
15.53 mi13:07:301:51:287:1117:51
7:22
#7230
30K
18.64 mi13:31:022:15:007:1523:32
7:34
#7253
20M
20.00 mi13:41:052:25:037:1510:03
7:24
#7139
21M
21.00 mi13:49:032:33:017:177:58
7:58
#7093
35K
21.75 mi13:54:262:38:247:175:23
7:12
#7058
23M
23.00 mi14:04:012:47:597:189:35
7:39
#7026
24M
24.00 mi14:11:042:55:027:187:03
7:03
#6899
40K
24.85 mi14:17:173:01:157:186:13
7:16
#6800
25.2M
25.20 mi14:19:573:03:557:182:40
7:44
#6752
Finish
26.22 mi14:26:573:10:557:177:00
6:52
#6625
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi62645465468239(Top 31%)1154(Top 10%)1154(Top 24%)
10K6.21 mi3.10 mi6287-23577-31577-316291(Top 24%)593(Top 5%)593(Top 12%)
15K9.32 mi3.11 mi6840-553699-122699-1228239(Top 31%)1154(Top 10%)1154(Top 24%)
20K12.43 mi3.11 mi7146-306780-81780-818302(Top 31%)1213(Top 11%)1213(Top 25%)
Half13.11 mi0.68 mi7178-32788-8788-87945(Top 30%)1054(Top 9%)1054(Top 22%)
25K15.53 mi2.42 mi7230-52813-25813-257715(Top 29%)1082(Top 9%)1082(Top 22%)
30K18.64 mi3.11 mi7253-23844-31844-317764(Top 29%)1200(Top 11%)1200(Top 25%)
20M20.00 mi1.36 mi7139+114826+18826+186183(Top 23%)750(Top 7%)750(Top 15%)
21M21.00 mi1.00 mi7093+46823+3823+37162(Top 27%)1187(Top 10%)1187(Top 24%)
35K21.75 mi0.75 mi7058+35824-1824-16534(Top 25%)927(Top 8%)927(Top 19%)
23M23.00 mi1.25 mi7026+32851-27851-277468(Top 28%)1355(Top 12%)1355(Top 28%)
24M24.00 mi1.00 mi6899+127829+22829+224956(Top 19%)566(Top 5%)566(Top 12%)
40K24.85 mi0.85 mi6800+99819+10819+105290(Top 20%)749(Top 7%)749(Top 15%)
25.2M25.20 mi0.35 mi6752+48811+8811+85110(Top 19%)755(Top 7%)755(Top 15%)
Finish26.22 mi1.02 mi6625+127786+25786+254487(Top 17%)580(Top 5%)580(Top 12%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 31%
×21story building
+97ft-345ft

Overall

8239

Females

1154

F18-39

1154

5K→10K

3.1 - 6.2 mi

Top 24%
×5story building
+79ft-138ft

Overall

6291

Females

593

F18-39

593

10K→15K

6.2 - 9.3 mi

Top 31%
×3story building
+67ft-78ft

Overall

8239

Females

1154

F18-39

1154

15K→20K

9.3 - 12.4 mi

Top 31%
×5story building
+106ft-86ft

Overall

8302

Females

1213

F18-39

1213

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

7945

Females

1054

F18-39

1054

Half→25K

13.1 - 15.5 mi

Top 29%
×4story building
+66ft-88ft

Overall

7715

Females

1082

F18-39

1082

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

7764

Females

1200

F18-39

1200

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

6183

Females

750

F18-39

750

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

7162

Females

1187

F18-39

1187

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

6534

Females

927

F18-39

927

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7468

Females

1355

F18-39

1355

23M→24M

23.0 - 24.0 mi

Top 19%
×6story building
+12ft-82ft

Overall

4956

Females

566

F18-39

566

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5290

Females

749

F18-39

749

40K→25.2M

24.9 - 25.2 mi

Top 19%
×1story
+13ft-16ft

Overall

5110

Females

755

F18-39

755

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4487

Females

580

F18-39

580

Passing Analysis

Category:
Athletes Passed
1213
Passed By
1574
Net Change
-361
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#6264
5K → 10K174197-23#6264#6287
10K → 15K21574-553#6287#6840
15K → 20K36342-306#6840#7146
20K → Half840-32#7146#7178
Half → 25K68120-52#7178#7230
25K → 30K119142-23#7230#7253
30K → 20M12511+114#7253#7139
20M → 21M8842+46#7139#7093
21M → 35K5116+35#7093#7058
35K → 23M9866+32#7058#7026
23M → 24M1303+127#7026#6899
24M → 40K1078+99#6899#6800
40K → 25.2M535+48#6800#6752
25.2M → Finish1358+127#6752#6625
TOTALS12131574-361
📊

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