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BOSTON MARATHON 2025

Brie Koenigs

Bib: 21303•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
8:13/mi
25:31
↑ 97↓ 3451.5%
10K· 6.21 mi
8:23/mi
51:35
↑ 79↓ 1380.4%
15K· 9.32 mi
8:56/mi
1:19:20
↑ 67↓ 78
20K· 12.43 mi
8:54/mi
1:47:00
↑ 106↓ 860.1%
Half· 13.11 mi
8:46/mi
1:52:59
↑ 19↓ 370.5%
25K· 15.53 mi
9:13/mi
2:15:20
↑ 66↓ 880.2%
30K· 18.64 mi
9:28/mi
2:44:46
↑ 181↓ 1480.2%
20M
10:53/mi
2:59:33
↑ 64↓ 500.2%
21M
10:28/mi
3:10:01
↑ 106↓ 241.6%
35K· 21.75 mi
9:47/mi
3:17:20
↑ 17↓ 861.7%
23M
10:53/mi
3:30:58
↑ 23↓ 630.6%
24M
9:37/mi
3:40:35
↓ 821.3%
40K· 24.85 mi
9:53/mi
3:49:02
↓ 200.3%
25.2M
10:00/mi
3:52:29
↑ 13↓ 160.2%
Finish· 26.22 mi
8:14/mi
4:00:52
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:59
Pace8:37 /mi
2nd Half
Distance13.11 mi
Time2:07:53
Pace9:45 /mi
📊Positive Split: 13.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0925:318:1325:31
8:13
-
10K
6.21 mi11:45:1351:358:1826:04
8:23
+0:10
15K
9.32 mi12:12:581:19:208:3127:45
8:56
+0:33
20K
12.43 mi12:40:381:47:008:3727:40
8:54
-0:02
Half
13.11 mi12:46:371:52:598:375:59
8:46
-0:08
25K
15.53 mi13:08:582:15:208:4322:21
9:13
+0:27
30K
18.64 mi13:38:242:44:468:5029:26
9:28
+0:15
20M
20.00 mi13:53:112:59:338:5914:47
10:53
+1:25
21M
21.00 mi14:03:393:10:019:0310:28
10:28
-0:25
35K
21.75 mi14:10:583:17:209:047:19
9:47
-0:41
23M
23.00 mi14:24:363:30:589:1013:38
10:53
+1:06
24M
24.00 mi14:34:133:40:359:119:37
9:37
-1:16
40K
24.85 mi14:42:403:49:029:138:27
9:53
+0:16
25.2M
25.20 mi14:46:073:52:299:143:27
10:00
+0:07
Finish
26.22 mi14:54:304:00:529:128:23
8:14
-1:46

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

8:13 /mi

Average Pace

9:12 /mi

Slowest Pace

10:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:01:22

50% of race

Time at Steady Pace

1:17:10

32% of race

Time at Slower Pace

42:20

18% of race

Average Pace: 9:11 /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 mi11:19:0925:318:1325:31
8:13
#18215
10K
6.21 mi11:45:1351:358:1826:04
8:23
#18627
15K
9.32 mi12:12:581:19:208:3127:45
8:56
#19754
20K
12.43 mi12:40:381:47:008:3727:40
8:54
#19925
Half
13.11 mi12:46:371:52:598:375:59
8:46
#19965
25K
15.53 mi13:08:582:15:208:4322:21
9:13
#20135
30K
18.64 mi13:38:242:44:468:5029:26
9:28
#20085
20M
20.00 mi13:53:112:59:338:5914:47
10:53
#20453
21M
21.00 mi14:03:393:10:019:0310:28
10:28
#20425
35K
21.75 mi14:10:583:17:209:047:19
9:47
#20473
23M
23.00 mi14:24:363:30:589:1013:38
10:53
#20701
24M
24.00 mi14:34:133:40:359:119:37
9:37
#20690
40K
24.85 mi14:42:403:49:029:138:27
9:53
#20677
25.2M
25.20 mi14:46:073:52:299:143:27
10:00
#20636
Finish
26.22 mi14:54:304:00:529:128:23
8:14
#20488
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi182156473647321711(Top 76%)8383(Top 69%)8383(Top 462%)
10K6.21 mi3.10 mi18627-4126697-2246697-22419135(Top 67%)6966(Top 57%)6966(Top 384%)
15K9.32 mi3.11 mi19754-11277326-6297326-62921711(Top 76%)8383(Top 69%)8383(Top 462%)
20K12.43 mi3.11 mi19925-1717431-1057431-10520513(Top 72%)7781(Top 64%)7781(Top 429%)
Half13.11 mi0.68 mi19965-407458-277458-2720813(Top 73%)7939(Top 65%)7939(Top 438%)
25K15.53 mi2.42 mi20135-1707567-1097567-10920846(Top 73%)8003(Top 65%)8003(Top 441%)
30K18.64 mi3.11 mi20085+507572-57572-519848(Top 70%)7577(Top 62%)7577(Top 418%)
20M20.00 mi1.36 mi20453-3687810-2387810-23823341(Top 82%)9593(Top 78%)9593(Top 529%)
21M21.00 mi1.00 mi20425+287812-27812-219916(Top 70%)7864(Top 64%)7864(Top 434%)
35K21.75 mi0.75 mi20473-487851-397851-3921281(Top 75%)8655(Top 71%)8655(Top 477%)
23M23.00 mi1.25 mi20701-2288002-1518002-15122971(Top 81%)9586(Top 78%)9586(Top 529%)
24M24.00 mi1.00 mi20690+118008-68008-620075(Top 71%)8124(Top 66%)8124(Top 448%)
40K24.85 mi0.85 mi20677+138015-78015-720084(Top 71%)8202(Top 67%)8202(Top 452%)
25.2M25.20 mi0.35 mi20636+418005+108005+1017156(Top 60%)6694(Top 55%)6694(Top 369%)
Finish26.22 mi1.02 mi20488+1487934+717934+7114495(Top 51%)5218(Top 43%)5218(Top 288%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21story building
+97ft-345ft

Overall

21711

Females

8383

F45-49

8383

5K→10K

3.1 - 6.2 mi

Top 67%
×5story building
+79ft-138ft

Overall

19135

Females

6966

F45-49

6966

10K→15K

6.2 - 9.3 mi

Top 76%
×3story building
+67ft-78ft

Overall

21711

Females

8383

F45-49

8383

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20513

Females

7781

F45-49

7781

20K→Half

12.4 - 13.1 mi

Top 73%
×2story building
+19ft-37ft

Overall

20813

Females

7939

F45-49

7939

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

20846

Females

8003

F45-49

8003

25K→30K

15.5 - 18.6 mi

Top 70%
×9story building
+181ft-148ft

Overall

19848

Females

7577

F45-49

7577

30K→20M

18.6 - 20.0 mi

Top 82%
×5story building
+64ft-50ft

Overall

23341

Females

9593

F45-49

9593

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

19916

Females

7864

F45-49

7864

21M→35K

21.0 - 21.8 mi

Top 75%
×7story building
+17ft-86ft

Overall

21281

Females

8655

F45-49

8655

35K→23M

21.8 - 23.0 mi

Top 81%
×5story building
+23ft-63ft

Overall

22971

Females

9586

F45-49

9586

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

20075

Females

8124

F45-49

8124

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20084

Females

8202

F45-49

8202

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

17156

Females

6694

F45-49

6694

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14495

Females

5218

F45-49

5218

Passing Analysis

Category:
Athletes Passed
1209
Passed By
3482
Net Change
-2273
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18215
5K → 10K125537-412#18215#18627
10K → 15K291156-1127#18627#19754
15K → 20K145316-171#19754#19925
20K → Half1959-40#19925#19965
Half → 25K107277-170#19965#20135
25K → 30K251201+50#20135#20085
30K → 20M30398-368#20085#20453
20M → 21M9668+28#20453#20425
21M → 35K4391-48#20425#20473
35K → 23M45273-228#20473#20701
23M → 24M6251+11#20701#20690
24M → 40K6350+13#20690#20677
40K → 25.2M443+41#20677#20636
25.2M → Finish1502+148#20636#20488
TOTALS12093482-2273
📊

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