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BOSTON MARATHON 2025

Eryn Harrington

Bib: 19041•F

RI

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 45%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ 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
7:57/mi
24:42
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
49:12
↑ 79↓ 1380.4%
15K· 9.32 mi
7:51/mi
1:13:36
↑ 67↓ 78
20K· 12.43 mi
7:56/mi
1:38:14
↑ 106↓ 860.1%
Half· 13.11 mi
7:56/mi
1:43:39
↑ 19↓ 370.5%
25K· 15.53 mi
8:15/mi
2:03:39
↑ 66↓ 880.2%
30K· 18.64 mi
8:47/mi
2:30:55
↑ 181↓ 1480.2%
20M
8:54/mi
2:43:01
↑ 64↓ 500.2%
21M
9:55/mi
2:52:56
↑ 106↓ 241.6%
35K· 21.75 mi
8:45/mi
2:59:29
↑ 17↓ 861.7%
23M
9:28/mi
3:11:20
↑ 23↓ 630.6%
24M
8:59/mi
3:20:19
↓ 821.3%
40K· 24.85 mi
9:07/mi
3:28:07
↓ 200.3%
25.2M
10:21/mi
3:31:41
↑ 13↓ 160.2%
Finish· 26.22 mi
8:47/mi
3:40:38
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:39
Pace7:54 /mi
2nd Half
Distance13.11 mi
Time1:56:59
Pace8:55 /mi
📊Positive Split: 12.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:0724:427:5724:42
7:57
-
10K
6.21 mi11:40:3749:127:5524:30
7:53
-0:04
15K
9.32 mi12:05:011:13:367:5424:24
7:51
-0:02
20K
12.43 mi12:29:391:38:147:5424:38
7:56
+0:05
Half
13.11 mi12:35:041:43:397:545:25
7:56
0:00
25K
15.53 mi12:55:042:03:397:5820:00
8:15
+0:19
30K
18.64 mi13:22:202:30:558:0627:16
8:47
+0:32
20M
20.00 mi13:34:262:43:018:0912:06
8:54
+0:07
21M
21.00 mi13:44:212:52:568:149:55
9:55
+1:01
35K
21.75 mi13:50:542:59:298:156:33
8:45
-1:10
23M
23.00 mi14:02:453:11:208:1911:51
9:28
+0:43
24M
24.00 mi14:11:443:20:198:218:59
8:59
-0:29
40K
24.85 mi14:19:323:28:078:227:48
9:07
+0:08
25.2M
25.20 mi14:23:063:31:418:243:34
10:21
+1:14
Finish
26.22 mi14:32:033:40:388:258:57
8:47
-1:34

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

7:51 /mi

Average Pace

8:25 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:39

56% of race

Time at Steady Pace

1:11:39

32% of race

Time at Slower Pace

25:20

11% of race

Average Pace: 8:25 /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 mi11:16:0724:427:5724:42
7:57
#16208
10K
6.21 mi11:40:3749:127:5524:30
7:53
#15865
15K
9.32 mi12:05:011:13:367:5424:24
7:51
#15470
20K
12.43 mi12:29:391:38:147:5424:38
7:56
#15147
Half
13.11 mi12:35:041:43:397:545:25
7:56
#15155
25K
15.53 mi12:55:042:03:397:5820:00
8:15
#15254
30K
18.64 mi13:22:202:30:558:0627:16
8:47
#15480
20M
20.00 mi13:34:262:43:018:0912:06
8:54
#15489
21M
21.00 mi13:44:212:52:568:149:55
9:55
#15650
35K
21.75 mi13:50:542:59:298:156:33
8:45
#15674
23M
23.00 mi14:02:453:11:208:1911:51
9:28
#15806
24M
24.00 mi14:11:443:20:198:218:59
8:59
#15883
40K
24.85 mi14:19:323:28:078:227:48
9:07
#15903
25.2M
25.20 mi14:23:063:31:418:243:34
10:21
#15947
Finish
26.22 mi14:32:033:40:388:258:57
8:47
#16026
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi162085271527114861(Top 52%)4507(Top 37%)4507(Top 82%)
10K6.21 mi3.10 mi15865+3435057+2145057+21415578(Top 55%)4877(Top 40%)4877(Top 89%)
15K9.32 mi3.11 mi15470+3954829+2284829+22814861(Top 52%)4507(Top 37%)4507(Top 82%)
20K12.43 mi3.11 mi15147+3234665+1644665+16414380(Top 51%)4304(Top 35%)4304(Top 79%)
Half13.11 mi0.68 mi15155-84672-74672-715510(Top 55%)4910(Top 40%)4910(Top 90%)
25K15.53 mi2.42 mi15254-994751-794751-7915627(Top 55%)5087(Top 42%)5087(Top 93%)
30K18.64 mi3.11 mi15480-2264938-1874938-18716464(Top 58%)5719(Top 47%)5719(Top 105%)
20M20.00 mi1.36 mi15489-94968-304968-3016274(Top 57%)5756(Top 47%)5756(Top 105%)
21M21.00 mi1.00 mi15650-1615106-1385106-13817984(Top 63%)6778(Top 55%)6778(Top 124%)
35K21.75 mi0.75 mi15674-245139-335139-3317036(Top 60%)6357(Top 52%)6357(Top 116%)
23M23.00 mi1.25 mi15806-1325251-1125251-11218537(Top 65%)7253(Top 59%)7253(Top 133%)
24M24.00 mi1.00 mi15883-775313-625313-6217292(Top 61%)6640(Top 54%)6640(Top 121%)
40K24.85 mi0.85 mi15903-205348-355348-3516983(Top 60%)6566(Top 54%)6566(Top 120%)
25.2M25.20 mi0.35 mi15947-445389-415389-4118461(Top 65%)7350(Top 60%)7350(Top 134%)
Finish26.22 mi1.02 mi16026-795443-545443-5417965(Top 63%)7059(Top 58%)7059(Top 129%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14861

Females

4507

F18-39

4507

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

15578

Females

4877

F18-39

4877

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14861

Females

4507

F18-39

4507

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

14380

Females

4304

F18-39

4304

20K→Half

12.4 - 13.1 mi

Top 55%
×2story building
+19ft-37ft

Overall

15510

Females

4910

F18-39

4910

Half→25K

13.1 - 15.5 mi

Top 55%
×4story building
+66ft-88ft

Overall

15627

Females

5087

F18-39

5087

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

16464

Females

5719

F18-39

5719

30K→20M

18.6 - 20.0 mi

Top 57%
×5story building
+64ft-50ft

Overall

16274

Females

5756

F18-39

5756

20M→21M

20.0 - 21.0 mi

Top 63%
×8story building
+106ft-24ft

Overall

17984

Females

6778

F18-39

6778

21M→35K

21.0 - 21.8 mi

Top 60%
×7story building
+17ft-86ft

Overall

17036

Females

6357

F18-39

6357

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

18537

Females

7253

F18-39

7253

23M→24M

23.0 - 24.0 mi

Top 61%
×6story building
+12ft-82ft

Overall

17292

Females

6640

F18-39

6640

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16983

Females

6566

F18-39

6566

40K→25.2M

24.9 - 25.2 mi

Top 65%
×1story
+13ft-16ft

Overall

18461

Females

7350

F18-39

7350

25.2M→Finish

25.2 - 26.2 mi

Top 63%
×2story building
+22ft-21ft

Overall

17965

Females

7059

F18-39

7059

Passing Analysis

Category:
Athletes Passed
2168
Passed By
1986
Net Change
+182
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16208
5K → 10K508165+343#16208#15865
10K → 15K45055+395#15865#15470
15K → 20K37855+323#15470#15147
20K → Half3745-8#15147#15155
Half → 25K142241-99#15155#15254
25K → 30K169395-226#15254#15480
30K → 20M118127-9#15480#15489
20M → 21M71232-161#15489#15650
21M → 35K5377-24#15650#15674
35K → 23M74206-132#15674#15806
23M → 24M46123-77#15806#15883
24M → 40K6181-20#15883#15903
40K → 25.2M2165-44#15903#15947
25.2M → Finish40119-79#15947#16026
TOTALS21681986+182
📊

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