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BOSTON MARATHON 2025

Kristen Forderer

Bib: 22503•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 48%
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:21
Rank: #19792
Start → 5K
26:21 | 8:29/mi
10K· 6.21 mi
52:49
Rank: #19847 (-55)
5K → 10K
26:28 | 8:31/mi
15K· 9.32 mi
1:18:58
Rank: #19500 (+347)
10K → 15K
26:09 | 8:25/mi
20K· 12.43 mi
1:45:30
Rank: #19201 (+299)
15K → 20K
26:32 | 8:32/mi
Half· 13.11 mi
1:51:16
Rank: #19184 (+17)
20K → Half
5:46 | 8:27/mi
25K· 15.53 mi
2:12:15
Rank: #18983 (+201)
Half → 25K
20:59 | 8:39/mi
30K· 18.64 mi
2:40:46
Rank: #18892 (+91)
25K → 30K
28:31 | 9:11/mi
20M
2:53:18
Rank: #18826 (+66)
30K → 20M
12:32 | 9:13/mi
21M
3:03:21
Rank: #18794 (+32)
20M → 21M
10:03 | 10:03/mi
35K· 21.75 mi
3:10:04
Rank: #18767 (+27)
21M → 35K
6:43 | 8:59/mi
23M
3:21:54
Rank: #18747 (+20)
35K → 23M
11:50 | 9:27/mi
24M
3:31:06
Rank: #18749 (-2)
23M → 24M
9:12 | 9:12/mi
40K· 24.85 mi
3:38:59
Rank: #18689 (+60)
24M → 40K
7:53 | 9:13/mi
25.2M
3:42:46
Rank: #18727 (-38)
40K → 25.2M
3:47 | 10:58/mi
Finish· 26.22 mi
3:51:48
Rank: #18704 (+23)
25.2M → Finish
9:02 | 8:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:16
Pace8:29 /mi
2nd Half
Distance13.11 mi
Time2:00:32
Pace9:12 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:22:3026:218:2926:21
8:29
-
10K
6.21 mi11:48:5852:498:3026:28
8:31
+0:02
15K
9.32 mi12:15:071:18:588:2826:09
8:25
-0:06
20K
12.43 mi12:41:391:45:308:2926:32
8:32
+0:07
Half
13.11 mi12:47:251:51:168:295:46
8:27
-0:05
25K
15.53 mi13:08:242:12:158:3120:59
8:39
+0:12
30K
18.64 mi13:36:552:40:468:3728:31
9:11
+0:32
20M
20.00 mi13:49:272:53:188:4012:32
9:13
+0:02
21M
21.00 mi13:59:303:03:218:4410:03
10:03
+0:50
35K
21.75 mi14:06:133:10:048:446:43
8:59
-1:04
23M
23.00 mi14:18:033:21:548:4711:50
9:27
+0:28
24M
24.00 mi14:27:153:31:068:489:12
9:12
-0:15
40K
24.85 mi14:35:083:38:598:497:53
9:13
+0:01
25.2M
25.20 mi14:38:553:42:468:503:47
10:58
+1:45
Finish
26.22 mi14:47:573:51:488:519:02
8:52
-2:06

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

8:25 /mi

Average Pace

8:51 /mi

Slowest Pace

10:58 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:16

48% of race

Time at Steady Pace

1:34:52

41% of race

Time at Slower Pace

25:40

11% of race

Average Pace: 8:50 /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 mi11:22:3026:218:2926:21
8:29
#19792
10K
6.21 mi11:48:5852:498:3026:28
8:31
#19847
15K
9.32 mi12:15:071:18:588:2826:09
8:25
#19500
20K
12.43 mi12:41:391:45:308:2926:32
8:32
#19201
Half
13.11 mi12:47:251:51:168:295:46
8:27
#19184
25K
15.53 mi13:08:242:12:158:3120:59
8:39
#18983
30K
18.64 mi13:36:552:40:468:3728:31
9:11
#18892
20M
20.00 mi13:49:272:53:188:4012:32
9:13
#18826
21M
21.00 mi13:59:303:03:218:4410:03
10:03
#18794
35K
21.75 mi14:06:133:10:048:446:43
8:59
#18767
23M
23.00 mi14:18:033:21:548:4711:50
9:27
#18747
24M
24.00 mi14:27:153:31:068:489:12
9:12
#18749
40K
24.85 mi14:35:083:38:598:497:53
9:13
#18689
25.2M
25.20 mi14:38:553:42:468:503:47
10:58
#18727
Finish
26.22 mi14:47:573:51:488:519:02
8:52
#18704
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi197927388738818822(Top 66%)6794(Top 56%)6794(Top 375%)
10K6.21 mi3.10 mi19847-557381+77381+719917(Top 70%)7421(Top 61%)7421(Top 409%)
15K9.32 mi3.11 mi19500+3477180+2017180+20118822(Top 66%)6794(Top 56%)6794(Top 375%)
20K12.43 mi3.11 mi19201+2997021+1597021+15918510(Top 65%)6636(Top 54%)6636(Top 366%)
Half13.11 mi0.68 mi19184+177013+87013+818944(Top 67%)6867(Top 56%)6867(Top 379%)
25K15.53 mi2.42 mi18983+2016908+1056908+10518135(Top 64%)6501(Top 53%)6501(Top 359%)
30K18.64 mi3.11 mi18892+916884+246884+2418553(Top 65%)6860(Top 56%)6860(Top 378%)
20M20.00 mi1.36 mi18826+666870+146870+1417914(Top 63%)6663(Top 54%)6663(Top 368%)
21M21.00 mi1.00 mi18794+326884-146884-1418515(Top 65%)7067(Top 58%)7067(Top 390%)
35K21.75 mi0.75 mi18767+276891-76891-718148(Top 64%)6984(Top 57%)6984(Top 385%)
23M23.00 mi1.25 mi18747+206908-176908-1718488(Top 65%)7230(Top 59%)7230(Top 399%)
24M24.00 mi1.00 mi18749-26931-236931-2318371(Top 65%)7236(Top 59%)7236(Top 399%)
40K24.85 mi0.85 mi18689+606928+36928+317473(Top 62%)6849(Top 56%)6849(Top 378%)
25.2M25.20 mi0.35 mi18727-386960-326960-3220551(Top 72%)8429(Top 69%)8429(Top 465%)
Finish26.22 mi1.02 mi18704+236964-46964-418385(Top 65%)7283(Top 60%)7283(Top 402%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21stories
+97ft-345ft

Overall

18822

Females

6794

F45-49

6794

5K→10K

3.1 - 6.2 mi

Top 70%
×5stories
+79ft-138ft

Overall

19917

Females

7421

F45-49

7421

10K→15K

6.2 - 9.3 mi

Top 66%
×3stories
+67ft-78ft

Overall

18822

Females

6794

F45-49

6794

15K→20K

9.3 - 12.4 mi

Top 65%
×5stories
+106ft-86ft

Overall

18510

Females

6636

F45-49

6636

20K→Half

12.4 - 13.1 mi

Top 67%
×2stories
+19ft-37ft

Overall

18944

Females

6867

F45-49

6867

Half→25K

13.1 - 15.5 mi

Top 64%
×4stories
+66ft-88ft

Overall

18135

Females

6501

F45-49

6501

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

18553

Females

6860

F45-49

6860

30K→20M

18.6 - 20.0 mi

Top 63%
×5stories
+64ft-50ft

Overall

17914

Females

6663

F45-49

6663

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

18515

Females

7067

F45-49

7067

21M→35K

21.0 - 21.8 mi

Top 64%
×7stories
+17ft-86ft

Overall

18148

Females

6984

F45-49

6984

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18488

Females

7230

F45-49

7230

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

18371

Females

7236

F45-49

7236

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17473

Females

6849

F45-49

6849

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1story
+13ft-16ft

Overall

20551

Females

8429

F45-49

8429

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

18385

Females

7283

F45-49

7283

Passing Analysis

Category:
Athletes Passed
2277
Passed By
1189
Net Change
+1088
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19792
5K → 10K237292-55#19792#19847
10K → 15K40255+347#19847#19500
15K → 20K35657+299#19500#19201
20K → Half4427+17#19201#19184
Half → 25K26665+201#19184#18983
25K → 30K272181+91#18983#18892
30K → 20M13872+66#18892#18826
20M → 21M12492+32#18826#18794
21M → 35K7043+27#18794#18767
35K → 23M11292+20#18767#18747
23M → 24M6567-2#18747#18749
24M → 40K10040+60#18749#18689
40K → 25.2M2361-38#18689#18727
25.2M → Finish6845+23#18727#18704
TOTALS22771189+1088
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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