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BOSTON MARATHON 2025

Lisa Firestone

Bib: 21041•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 43%
Division (F50-54)
#0 / 1303
Top 38%
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
8:11/mi
25:27
↑ 97↓ 3451.5%
10K· 6.21 mi
8:13/mi
50:58
↑ 79↓ 1380.4%
15K· 9.32 mi
8:12/mi
1:16:27
↑ 67↓ 78
20K· 12.43 mi
8:19/mi
1:42:18
↑ 106↓ 860.1%
Half· 13.11 mi
8:12/mi
1:47:54
↑ 19↓ 370.5%
25K· 15.53 mi
8:38/mi
2:08:49
↑ 66↓ 880.2%
30K· 18.64 mi
9:23/mi
2:37:57
↑ 181↓ 1480.2%
20M
9:16/mi
2:50:33
↑ 64↓ 500.2%
21M
10:10/mi
3:00:43
↑ 106↓ 241.6%
35K· 21.75 mi
8:52/mi
3:07:21
↑ 17↓ 861.7%
23M
9:10/mi
3:18:50
↑ 23↓ 630.6%
24M
9:11/mi
3:28:01
↓ 821.3%
40K· 24.85 mi
9:13/mi
3:35:54
↓ 200.3%
25.2M
10:09/mi
3:39:24
↑ 13↓ 160.2%
Finish· 26.22 mi
8:22/mi
3:47:56
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:54
Pace8:14 /mi
2nd Half
Distance13.11 mi
Time2:00:02
Pace9:09 /mi
📊Positive Split: 11.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:4125:278:1125:27
8:11
-
10K
6.21 mi11:46:1250:588:1225:31
8:13
+0:02
15K
9.32 mi12:11:411:16:278:1225:29
8:12
-0:01
20K
12.43 mi12:37:321:42:188:1425:51
8:19
+0:07
Half
13.11 mi12:43:081:47:548:145:36
8:12
-0:07
25K
15.53 mi13:04:032:08:498:1820:55
8:38
+0:26
30K
18.64 mi13:33:112:37:578:2829:08
9:23
+0:45
20M
20.00 mi13:45:472:50:338:3212:36
9:16
-0:07
21M
21.00 mi13:55:573:00:438:3610:10
10:10
+0:54
35K
21.75 mi14:02:353:07:218:376:38
8:52
-1:18
23M
23.00 mi14:14:043:18:508:3911:29
9:10
+0:18
24M
24.00 mi14:23:153:28:018:409:11
9:11
+0:01
40K
24.85 mi14:31:083:35:548:417:53
9:13
+0:02
25.2M
25.20 mi14:34:383:39:248:423:30
10:09
+0:56
Finish
26.22 mi14:43:103:47:568:428:32
8:22
-1:47

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

8:11 /mi

Average Pace

8:42 /mi

Slowest Pace

10:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:56:26

51% of race

Time at Steady Pace

48:13

21% of race

Time at Slower Pace

1:03:17

28% of race

Average Pace: 8:42 /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 mi11:20:4125:278:1125:27
8:11
#18057
10K
6.21 mi11:46:1250:588:1225:31
8:13
#18001
15K
9.32 mi12:11:411:16:278:1225:29
8:12
#17773
20K
12.43 mi12:37:321:42:188:1425:51
8:19
#17562
Half
13.11 mi12:43:081:47:548:145:36
8:12
#17538
25K
15.53 mi13:04:032:08:498:1820:55
8:38
#17554
30K
18.64 mi13:33:112:37:578:2829:08
9:23
#17928
20M
20.00 mi13:45:472:50:338:3212:36
9:16
#17947
21M
21.00 mi13:55:573:00:438:3610:10
10:10
#18050
35K
21.75 mi14:02:353:07:218:376:38
8:52
#18016
23M
23.00 mi14:14:043:18:508:3911:29
9:10
#17951
24M
24.00 mi14:23:153:28:018:409:11
9:11
#17942
40K
24.85 mi14:31:083:35:548:417:53
9:13
#17931
25.2M
25.20 mi14:34:383:39:248:423:30
10:09
#17930
Finish
26.22 mi14:43:103:47:568:428:32
8:22
#17820
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi180576381638117417(Top 61%)5966(Top 49%)5966(Top 458%)
10K6.21 mi3.10 mi18001+566328+536328+5317991(Top 63%)6285(Top 51%)6285(Top 482%)
15K9.32 mi3.11 mi17773+2286193+1356193+13517417(Top 61%)5966(Top 49%)5966(Top 458%)
20K12.43 mi3.11 mi17562+2116074+1196074+11917066(Top 60%)5812(Top 48%)5812(Top 446%)
Half13.11 mi0.68 mi17538+246056+186056+1817391(Top 61%)5990(Top 49%)5990(Top 460%)
25K15.53 mi2.42 mi17554-166093-376093-3717977(Top 63%)6418(Top 52%)6418(Top 493%)
30K18.64 mi3.11 mi17928-3746359-2666359-26619446(Top 68%)7360(Top 60%)7360(Top 565%)
20M20.00 mi1.36 mi17947-196392-336392-3318171(Top 64%)6811(Top 56%)6811(Top 523%)
21M21.00 mi1.00 mi18050-1036463-716463-7118924(Top 67%)7295(Top 60%)7295(Top 560%)
35K21.75 mi0.75 mi18016+346456+76456+717621(Top 62%)6696(Top 55%)6696(Top 514%)
23M23.00 mi1.25 mi17951+656469-136469-1317212(Top 61%)6565(Top 54%)6565(Top 504%)
24M24.00 mi1.00 mi17942+96494-256494-2518287(Top 64%)7189(Top 59%)7189(Top 552%)
40K24.85 mi0.85 mi17931+116509-156509-1517466(Top 61%)6842(Top 56%)6842(Top 525%)
25.2M25.20 mi0.35 mi17930+16518-96518-917723(Top 62%)6975(Top 57%)6975(Top 535%)
Finish26.22 mi1.02 mi17820+1106479+396479+3915432(Top 54%)5721(Top 47%)5721(Top 439%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 61%
×21story building
+97ft-345ft

Overall

17417

Females

5966

F50-54

5966

5K→10K

3.1 - 6.2 mi

Top 63%
×5story building
+79ft-138ft

Overall

17991

Females

6285

F50-54

6285

10K→15K

6.2 - 9.3 mi

Top 61%
×3story building
+67ft-78ft

Overall

17417

Females

5966

F50-54

5966

15K→20K

9.3 - 12.4 mi

Top 60%
×5story building
+106ft-86ft

Overall

17066

Females

5812

F50-54

5812

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

17391

Females

5990

F50-54

5990

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

17977

Females

6418

F50-54

6418

25K→30K

15.5 - 18.6 mi

Top 68%
×9story building
+181ft-148ft

Overall

19446

Females

7360

F50-54

7360

30K→20M

18.6 - 20.0 mi

Top 64%
×5story building
+64ft-50ft

Overall

18171

Females

6811

F50-54

6811

20M→21M

20.0 - 21.0 mi

Top 67%
×8story building
+106ft-24ft

Overall

18924

Females

7295

F50-54

7295

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

17621

Females

6696

F50-54

6696

35K→23M

21.8 - 23.0 mi

Top 61%
×5story building
+23ft-63ft

Overall

17212

Females

6565

F50-54

6565

23M→24M

23.0 - 24.0 mi

Top 64%
×6story building
+12ft-82ft

Overall

18287

Females

7189

F50-54

7189

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

17466

Females

6842

F50-54

6842

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

17723

Females

6975

F50-54

6975

25.2M→Finish

25.2 - 26.2 mi

Top 54%
×2story building
+22ft-21ft

Overall

15432

Females

5721

F50-54

5721

Passing Analysis

Category:
Athletes Passed
1946
Passed By
1709
Net Change
+237
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18057
5K → 10K316260+56#18057#18001
10K → 15K31587+228#18001#17773
15K → 20K29382+211#17773#17562
20K → Half4824+24#17562#17538
Half → 25K170186-16#17538#17554
25K → 30K122496-374#17554#17928
30K → 20M109128-19#17928#17947
20M → 21M64167-103#17947#18050
21M → 35K6935+34#18050#18016
35K → 23M13772+65#18016#17951
23M → 24M8172+9#17951#17942
24M → 40K6453+11#17942#17931
40K → 25.2M2625+1#17931#17930
25.2M → Finish13222+110#17930#17820
TOTALS19461709+237
📊

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