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BOSTON MARATHON 2025

Laura Koenig

MA

Bib: 32438 F

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

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
8:39/mi
26:54
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
8:45/mi
54:05
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
8:50/mi
1:21:31
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
9:01/mi
1:49:31
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
8:52/mi
1:55:34
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
9:14/mi
2:17:57
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
9:36/mi
2:47:46
↑ 181↓ 1480.2%
138 ft elev
20M
9:52/mi
3:01:10
↑ 64↓ 500.2%
148 ft elev
21M
10:09/mi
3:11:19
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
9:44/mi
3:18:36
↑ 17↓ 861.7%
156 ft elev
23M
9:43/mi
3:30:46
↑ 23↓ 630.6%
116 ft elev
24M
9:48/mi
3:40:34
↓ 821.3%
34 ft elev
40K· 24.85 mi
9:48/mi
3:48:57
↓ 200.3%
20 ft elev
25.2M
10:44/mi
3:52:39
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
9:21/mi
4:02:11
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:55:34
Pace8:49 /mi
2nd Half
Distance13.11 mi
Time2:06:37
Pace9:40 /mi
📊Positive Split: 9.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:51:5126:548:3926:54
8:39
-
10K
6.21 mi12:19:0254:058:4227:11
8:45
+0:06
15K
9.32 mi12:46:281:21:318:4527:26
8:50
+0:05
20K
12.43 mi13:14:281:49:318:4928:00
9:01
+0:11
Half
13.11 mi13:20:311:55:348:496:03
8:52
-0:09
25K
15.53 mi13:42:542:17:578:5322:23
9:14
+0:22
30K
18.64 mi14:12:432:47:469:0029:49
9:36
+0:22
20M
20.00 mi14:26:073:01:109:0313:24
9:52
+0:16
21M
21.00 mi14:36:163:11:199:0710:09
10:09
+0:17
35K
21.75 mi14:43:333:18:369:087:17
9:44
-0:25
23M
23.00 mi14:55:433:30:469:1012:10
9:43
-0:01
24M
24.00 mi15:05:313:40:349:119:48
9:48
+0:05
40K
24.85 mi15:13:543:48:579:138:23
9:48
0:00
25.2M
25.20 mi15:17:363:52:399:143:42
10:44
+0:56
Finish
26.22 mi15:27:084:02:119:159:32
9:21
-1:23

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

8:39 /mi

Average Pace

9:15 /mi

Slowest Pace

10:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:17:57

57% of race

Time at Steady Pace

1:30:23

37% of race

Time at Slower Pace

13:51

6% of race

Average Pace: 9:14 /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 mi11:51:5126:548:3926:54
8:39
#20806
10K
6.21 mi12:19:0254:058:4227:11
8:45
#20940
15K
9.32 mi12:46:281:21:318:4527:26
8:50
#20983
20K
12.43 mi13:14:281:49:318:4928:00
9:01
#20992
Half
13.11 mi13:20:311:55:348:496:03
8:52
#21001
25K
15.53 mi13:42:542:17:578:5322:23
9:14
#21001
30K
18.64 mi14:12:432:47:469:0029:49
9:36
#20866
20M
20.00 mi14:26:073:01:109:0313:24
9:52
#20842
21M
21.00 mi14:36:163:11:199:0710:09
10:09
#20684
35K
21.75 mi14:43:333:18:369:087:17
9:44
#20717
23M
23.00 mi14:55:433:30:469:1012:10
9:43
#20662
24M
24.00 mi15:05:313:40:349:119:48
9:48
#20685
40K
24.85 mi15:13:543:48:579:138:23
9:48
#20665
25.2M
25.20 mi15:17:363:52:399:143:42
10:44
#20658
Finish
26.22 mi15:27:084:02:119:159:32
9:21
#20657
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi208067975797521180(Top 75%)8098(Top 66%)8098(Top 148%)
10K6.21 mi3.10 mi20940-1348023-488023-4821166(Top 75%)8121(Top 66%)8121(Top 148%)
15K9.32 mi3.11 mi20983-438033-108033-1021180(Top 75%)8098(Top 66%)8098(Top 148%)
20K12.43 mi3.11 mi20992-98026+78026+721049(Top 74%)8091(Top 66%)8091(Top 148%)
Half13.11 mi0.68 mi21001-98030-48030-421268(Top 75%)8182(Top 67%)8182(Top 150%)
25K15.53 mi2.42 mi210018036-68036-620914(Top 74%)8045(Top 66%)8045(Top 147%)
30K18.64 mi3.11 mi20866+1358019+178019+1720347(Top 72%)7850(Top 64%)7850(Top 144%)
20M20.00 mi1.36 mi20842+248018+18018+120498(Top 72%)8075(Top 66%)8075(Top 148%)
21M21.00 mi1.00 mi20684+1587952+667952+6618884(Top 66%)7282(Top 60%)7282(Top 133%)
35K21.75 mi0.75 mi20717-337981-297981-2921129(Top 74%)8571(Top 70%)8571(Top 157%)
23M23.00 mi1.25 mi20662+557977+47977+419525(Top 69%)7803(Top 64%)7803(Top 143%)
24M24.00 mi1.00 mi20685-238006-298006-2920731(Top 73%)8462(Top 69%)8462(Top 155%)
40K24.85 mi0.85 mi20665+208011-58011-519843(Top 70%)8067(Top 66%)8067(Top 148%)
25.2M25.20 mi0.35 mi20658+78016-58016-519860(Top 70%)8088(Top 66%)8088(Top 148%)
Finish26.22 mi1.02 mi20657+18032-168032-1620625(Top 73%)8457(Top 69%)8457(Top 155%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 75%
×21story building
+97ft-345ft

Overall

21180

Females

8098

F18-39

8098

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

21166

Females

8121

F18-39

8121

10K→15K

6.2 - 9.3 mi

Top 75%
×3story building
+67ft-78ft

Overall

21180

Females

8098

F18-39

8098

15K→20K

9.3 - 12.4 mi

Top 74%
×5story building
+106ft-86ft

Overall

21049

Females

8091

F18-39

8091

20K→Half

12.4 - 13.1 mi

Top 75%
×2story building
+19ft-37ft

Overall

21268

Females

8182

F18-39

8182

Half→25K

13.1 - 15.5 mi

Top 74%
×4story building
+66ft-88ft

Overall

20914

Females

8045

F18-39

8045

25K→30K

15.5 - 18.6 mi

Top 72%
×9story building
+181ft-148ft

Overall

20347

Females

7850

F18-39

7850

30K→20M

18.6 - 20.0 mi

Top 72%
×5story building
+64ft-50ft

Overall

20498

Females

8075

F18-39

8075

20M→21M

20.0 - 21.0 mi

Top 66%
×8story building
+106ft-24ft

Overall

18884

Females

7282

F18-39

7282

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

21129

Females

8571

F18-39

8571

35K→23M

21.8 - 23.0 mi

Top 69%
×5story building
+23ft-63ft

Overall

19525

Females

7803

F18-39

7803

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

20731

Females

8462

F18-39

8462

24M→40K

24.0 - 24.9 mi

Top 70%
×1story
+6ft-20ft

Overall

19843

Females

8067

F18-39

8067

40K→25.2M

24.9 - 25.2 mi

Top 70%
×1story
+13ft-16ft

Overall

19860

Females

8088

F18-39

8088

25.2M→Finish

25.2 - 26.2 mi

Top 73%
×2story building
+22ft-21ft

Overall

20625

Females

8457

F18-39

8457

Passing Analysis

Category:
Athletes Passed
1654
Passed By
1505
Net Change
+149
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20806
5K → 10K208342-134#20806#20940
10K → 15K173216-43#20940#20983
15K → 20K181190-9#20983#20992
20K → Half3342-9#20992#21001
Half → 25K1431430#21001#21001
25K → 30K281146+135#21001#20866
30K → 20M11389+24#20866#20842
20M → 21M18224+158#20842#20684
21M → 35K4174-33#20684#20717
35K → 23M11257+55#20717#20662
23M → 24M5174-23#20662#20685
24M → 40K6646+20#20685#20665
40K → 25.2M2316+7#20665#20658
25.2M → Finish4746+1#20658#20657
TOTALS16541505+149
📊

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