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BOSTON MARATHON 2025

Iris Lockhart

Bib: 24442•F

FL

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F60-64)
#0 / 624
Top 47%
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
9:05/mi
28:13
↑ 97↓ 3451.5%
10K· 6.21 mi
8:54/mi
55:53
↑ 79↓ 1380.4%
15K· 9.32 mi
9:00/mi
1:23:52
↑ 67↓ 78
20K· 12.43 mi
9:03/mi
1:51:59
↑ 106↓ 860.1%
Half· 13.11 mi
9:02/mi
1:58:09
↑ 19↓ 370.5%
25K· 15.53 mi
9:46/mi
2:21:51
↑ 66↓ 880.2%
30K· 18.64 mi
9:25/mi
2:51:07
↑ 181↓ 1480.2%
20M
10:23/mi
3:05:13
↑ 64↓ 500.2%
21M
11:45/mi
3:16:58
↑ 106↓ 241.6%
35K· 21.75 mi
10:24/mi
3:24:45
↑ 17↓ 861.7%
23M
11:05/mi
3:38:37
↑ 23↓ 630.6%
24M
10:44/mi
3:49:21
↓ 821.3%
40K· 24.85 mi
11:43/mi
3:59:22
↓ 200.3%
25.2M
12:08/mi
4:03:33
↑ 13↓ 160.2%
Finish· 26.22 mi
10:19/mi
4:14:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:58:09
Pace9:01 /mi
2nd Half
Distance13.11 mi
Time2:15:55
Pace10:22 /mi
📊Positive Split: 15.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:28:1528:139:0528:13
9:05
-
10K
6.21 mi11:55:5555:539:0027:40
8:54
-0:11
15K
9.32 mi12:23:541:23:529:0027:59
9:00
+0:06
20K
12.43 mi12:52:011:51:599:0128:07
9:03
+0:03
Half
13.11 mi12:58:111:58:099:016:10
9:02
-0:01
25K
15.53 mi13:21:532:21:519:0823:42
9:46
+0:44
30K
18.64 mi13:51:092:51:079:1129:16
9:25
-0:21
20M
20.00 mi14:05:153:05:139:1614:06
10:23
+0:58
21M
21.00 mi14:17:003:16:589:2311:45
11:45
+1:22
35K
21.75 mi14:24:473:24:459:257:47
10:24
-1:21
23M
23.00 mi14:38:393:38:379:3013:52
11:05
+0:41
24M
24.00 mi14:49:233:49:219:3310:44
10:44
-0:21
40K
24.85 mi14:59:243:59:229:3810:01
11:43
+0:59
25.2M
25.20 mi15:03:354:03:339:404:11
12:08
+0:25
Finish
26.22 mi15:14:064:14:049:4210:31
10:19
-1:49

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

8:54 /mi

Average Pace

9:42 /mi

Slowest Pace

12:08 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:51:07

67% of race

Time at Steady Pace

43:08

17% of race

Time at Slower Pace

39:49

16% of race

Average Pace: 9:41 /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 mi11:28:1528:139:0528:13
9:05
#22792
10K
6.21 mi11:55:5555:539:0027:40
8:54
#22403
15K
9.32 mi12:23:541:23:529:0027:59
9:00
#22274
20K
12.43 mi12:52:011:51:599:0128:07
9:03
#21988
Half
13.11 mi12:58:111:58:099:016:10
9:02
#21986
25K
15.53 mi13:21:532:21:519:0823:42
9:46
#22164
30K
18.64 mi13:51:092:51:079:1129:16
9:25
#21668
20M
20.00 mi14:05:153:05:139:1614:06
10:23
#21724
21M
21.00 mi14:17:003:16:589:2311:45
11:45
#21848
35K
21.75 mi14:24:473:24:459:257:47
10:24
#21886
23M
23.00 mi14:38:393:38:379:3013:52
11:05
#21970
24M
24.00 mi14:49:233:49:219:3310:44
10:44
#22043
40K
24.85 mi14:59:243:59:229:3810:01
11:43
#22180
25.2M
25.20 mi15:03:354:03:339:404:11
12:08
#22214
Finish
26.22 mi15:14:064:14:049:4210:31
10:19
#22233
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
5K3.11 mi3.11 mi227929068906822093(Top 78%)8610(Top 70%)8610(Top 1380%)
10K6.21 mi3.10 mi22403+3898837+2318837+23121962(Top 77%)8575(Top 70%)8575(Top 1374%)
15K9.32 mi3.11 mi22274+1298741+968741+9622093(Top 78%)8610(Top 70%)8610(Top 1380%)
20K12.43 mi3.11 mi21988+2868595+1468595+14621233(Top 75%)8171(Top 67%)8171(Top 1309%)
Half13.11 mi0.68 mi21986+28590+58590+522021(Top 78%)8626(Top 71%)8626(Top 1382%)
25K15.53 mi2.42 mi22164-1788691-1018691-10122712(Top 80%)9036(Top 74%)9036(Top 1448%)
30K18.64 mi3.11 mi21668+4968444+2478444+24719633(Top 69%)7468(Top 61%)7468(Top 1197%)
20M20.00 mi1.36 mi21724-568482-388482-3822092(Top 78%)8945(Top 73%)8945(Top 1433%)
21M21.00 mi1.00 mi21848-1248578-968578-9623129(Top 81%)9556(Top 78%)9556(Top 1531%)
35K21.75 mi0.75 mi21886-388613-358613-3522970(Top 81%)9540(Top 78%)9540(Top 1529%)
23M23.00 mi1.25 mi21970-848698-858698-8523408(Top 82%)9807(Top 80%)9807(Top 1572%)
24M24.00 mi1.00 mi22043-738764-668764-6623403(Top 82%)9828(Top 80%)9828(Top 1575%)
40K24.85 mi0.85 mi22180-1378856-928856-9224509(Top 86%)10426(Top 85%)10426(Top 1671%)
25.2M25.20 mi0.35 mi22214-348877-218877-2123512(Top 83%)9915(Top 81%)9915(Top 1589%)
Finish26.22 mi1.02 mi22233-198916-398916-3923847(Top 84%)10091(Top 83%)10091(Top 1617%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

22093

Females

8610

F60-64

8610

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

21962

Females

8575

F60-64

8575

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

22093

Females

8610

F60-64

8610

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

21233

Females

8171

F60-64

8171

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

22021

Females

8626

F60-64

8626

Half→25K

13.1 - 15.5 mi

Top 80%
×4story building
+66ft-88ft

Overall

22712

Females

9036

F60-64

9036

25K→30K

15.5 - 18.6 mi

Top 69%
×9story building
+181ft-148ft

Overall

19633

Females

7468

F60-64

7468

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

22092

Females

8945

F60-64

8945

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

23129

Females

9556

F60-64

9556

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

22970

Females

9540

F60-64

9540

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

23408

Females

9807

F60-64

9807

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

23403

Females

9828

F60-64

9828

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

24509

Females

10426

F60-64

10426

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

23512

Females

9915

F60-64

9915

25.2M→Finish

25.2 - 26.2 mi

Top 84%
×2story building
+22ft-21ft

Overall

23847

Females

10091

F60-64

10091

Passing Analysis

Category:
Athletes Passed
2003
Passed By
1444
Net Change
+559
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22792
5K → 10K497108+389#22792#22403
10K → 15K245116+129#22403#22274
15K → 20K32741+286#22274#21988
20K → Half3634+2#21988#21986
Half → 25K89267-178#21986#22164
25K → 30K51519+496#22164#21668
30K → 20M69125-56#21668#21724
20M → 21M41165-124#21724#21848
21M → 35K3270-38#21848#21886
35K → 23M59143-84#21886#21970
23M → 24M29102-73#21970#22043
24M → 40K16153-137#22043#22180
40K → 25.2M1044-34#22180#22214
25.2M → Finish3857-19#22214#22233
TOTALS20031444+559
📊

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