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BOSTON MARATHON 2025

Natalie Eychaner

Bib: 14623•F

IL

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 31%
Gender (Female)
#0 / 12228
Top 14%
Division (F18-39)
#0 / 5469
Top 25%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:54
Rank: #11060
Start → 5K
22:54 | 7:22/mi
10K· 6.21 mi
45:41
Rank: #10795 (+265)
5K → 10K
22:47 | 7:20/mi
15K· 9.32 mi
1:08:34
Rank: #10688 (+107)
10K → 15K
22:53 | 7:22/mi
20K· 12.43 mi
1:31:40
Rank: #10551 (+137)
15K → 20K
23:06 | 7:26/mi
Half· 13.11 mi
1:36:38
Rank: #10491 (+60)
20K → Half
4:58 | 7:17/mi
25K· 15.53 mi
1:54:43
Rank: #10313 (+178)
Half → 25K
18:05 | 7:27/mi
30K· 18.64 mi
2:18:14
Rank: #9833 (+480)
25K → 30K
23:31 | 7:34/mi
20M
2:28:34
Rank: #9621 (+212)
30K → 20M
10:20 | 7:36/mi
21M
2:36:39
Rank: #9484 (+137)
20M → 21M
8:05 | 8:05/mi
35K· 21.75 mi
2:42:08
Rank: #9377 (+107)
21M → 35K
5:29 | 7:20/mi
23M
2:51:41
Rank: #9191 (+186)
35K → 23M
9:33 | 7:38/mi
24M
2:59:07
Rank: #9057 (+134)
23M → 24M
7:26 | 7:26/mi
40K· 24.85 mi
3:05:37
Rank: #8950 (+107)
24M → 40K
6:30 | 7:36/mi
25.2M
3:08:28
Rank: #8918 (+32)
40K → 25.2M
2:51 | 8:16/mi
Finish· 26.22 mi
3:15:59
Rank: #8858 (+60)
25.2M → Finish
7:31 | 7:23/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:38
Pace7:22 /mi
2nd Half
Distance13.11 mi
Time1:39:21
Pace7:35 /mi
📊Positive Split: 2.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:0922:547:2222:54
7:22
-
10K
6.21 mi11:17:5645:417:2122:47
7:20
-0:02
15K
9.32 mi11:40:491:08:347:2122:53
7:22
+0:02
20K
12.43 mi12:03:551:31:407:2323:06
7:26
+0:04
Half
13.11 mi12:08:531:36:387:224:58
7:17
-0:09
25K
15.53 mi12:26:581:54:437:2318:05
7:27
+0:10
30K
18.64 mi12:50:292:18:147:2523:31
7:34
+0:07
20M
20.00 mi13:00:492:28:347:2610:20
7:36
+0:02
21M
21.00 mi13:08:542:36:397:288:05
8:05
+0:29
35K
21.75 mi13:14:232:42:087:275:29
7:20
-0:45
23M
23.00 mi13:23:562:51:417:289:33
7:38
+0:18
24M
24.00 mi13:31:222:59:077:287:26
7:26
-0:12
40K
24.85 mi13:37:523:05:377:286:30
7:36
+0:10
25.2M
25.20 mi13:40:433:08:287:292:51
8:16
+0:40
Finish
26.22 mi13:48:143:15:597:297:31
7:23
-0:53

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

7:17 /mi

Average Pace

7:29 /mi

Slowest Pace

8:16 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:05:03

94% of race

Time at Steady Pace

10:56

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:28 /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 mi10:55:0922:547:2222:54
7:22
#11060
10K
6.21 mi11:17:5645:417:2122:47
7:20
#10795
15K
9.32 mi11:40:491:08:347:2122:53
7:22
#10688
20K
12.43 mi12:03:551:31:407:2323:06
7:26
#10551
Half
13.11 mi12:08:531:36:387:224:58
7:17
#10491
25K
15.53 mi12:26:581:54:437:2318:05
7:27
#10313
30K
18.64 mi12:50:292:18:147:2523:31
7:34
#9833
20M
20.00 mi13:00:492:28:347:2610:20
7:36
#9621
21M
21.00 mi13:08:542:36:397:288:05
8:05
#9484
35K
21.75 mi13:14:232:42:087:275:29
7:20
#9377
23M
23.00 mi13:23:562:51:417:289:33
7:38
#9191
24M
24.00 mi13:31:222:59:077:287:26
7:26
#9057
40K
24.85 mi13:37:523:05:377:286:30
7:36
#8950
25.2M
25.20 mi13:40:433:08:287:292:51
8:16
#8918
Finish
26.22 mi13:48:143:15:597:297:31
7:23
#8858
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi110602312231210551(Top 37%)2141(Top 18%)2141(Top 39%)
10K6.21 mi3.10 mi10795+2652202+1102202+11010612(Top 37%)2114(Top 17%)2114(Top 39%)
15K9.32 mi3.11 mi10688+1072174+282174+2810551(Top 37%)2141(Top 18%)2141(Top 39%)
20K12.43 mi3.11 mi10551+1372127+472127+4710208(Top 36%)2057(Top 17%)2057(Top 38%)
Half13.11 mi0.68 mi10491+602094+332094+339877(Top 35%)1893(Top 15%)1893(Top 35%)
25K15.53 mi2.42 mi10313+1782050+442050+449617(Top 34%)1930(Top 16%)1930(Top 35%)
30K18.64 mi3.11 mi9833+4801883+1671883+1678233(Top 29%)1487(Top 12%)1487(Top 27%)
20M20.00 mi1.36 mi9621+2121823+601823+607737(Top 27%)1440(Top 12%)1440(Top 26%)
21M21.00 mi1.00 mi9484+1371795+281795+287875(Top 28%)1672(Top 14%)1672(Top 31%)
35K21.75 mi0.75 mi9377+1071768+271768+277458(Top 26%)1480(Top 12%)1480(Top 27%)
23M23.00 mi1.25 mi9191+1861720+481720+487457(Top 26%)1597(Top 13%)1597(Top 29%)
24M24.00 mi1.00 mi9057+1341694+261694+267285(Top 26%)1574(Top 13%)1574(Top 29%)
40K24.85 mi0.85 mi8950+1071687+71687+77459(Top 26%)1737(Top 14%)1737(Top 32%)
25.2M25.20 mi0.35 mi8918+321696-91696-97511(Top 26%)1851(Top 15%)1851(Top 34%)
Finish26.22 mi1.02 mi8858+601710-141710-148343(Top 29%)2205(Top 18%)2205(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21stories
+97ft-345ft

Overall

10551

Females

2141

F18-39

2141

5K→10K

3.1 - 6.2 mi

Top 37%
×5stories
+79ft-138ft

Overall

10612

Females

2114

F18-39

2114

10K→15K

6.2 - 9.3 mi

Top 37%
×3stories
+67ft-78ft

Overall

10551

Females

2141

F18-39

2141

15K→20K

9.3 - 12.4 mi

Top 36%
×5stories
+106ft-86ft

Overall

10208

Females

2057

F18-39

2057

20K→Half

12.4 - 13.1 mi

Top 35%
×2stories
+19ft-37ft

Overall

9877

Females

1893

F18-39

1893

Half→25K

13.1 - 15.5 mi

Top 34%
×4stories
+66ft-88ft

Overall

9617

Females

1930

F18-39

1930

25K→30K

15.5 - 18.6 mi

Top 29%
×9stories
+181ft-148ft

Overall

8233

Females

1487

F18-39

1487

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7737

Females

1440

F18-39

1440

20M→21M

20.0 - 21.0 mi

Top 28%
×8stories
+106ft-24ft

Overall

7875

Females

1672

F18-39

1672

21M→35K

21.0 - 21.8 mi

Top 26%
×7stories
+17ft-86ft

Overall

7458

Females

1480

F18-39

1480

35K→23M

21.8 - 23.0 mi

Top 26%
×5stories
+23ft-63ft

Overall

7457

Females

1597

F18-39

1597

23M→24M

23.0 - 24.0 mi

Top 26%
×6stories
+12ft-82ft

Overall

7285

Females

1574

F18-39

1574

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7459

Females

1737

F18-39

1737

40K→25.2M

24.9 - 25.2 mi

Top 26%
×1story
+13ft-16ft

Overall

7511

Females

1851

F18-39

1851

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2stories
+22ft-21ft

Overall

8343

Females

2205

F18-39

2205

Passing Analysis

Category:
Athletes Passed
2839*
Passed By
637
Net Change
+2202
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11060
5K → 10K407142+265#11060#10795
10K → 15K212105+107#10795#10688
15K → 20K23699+137#10688#10551
20K → Half699+60#10551#10491
Half → 25K23961+178#10491#10313
25K → 30K515*35+480#10313#9833
30K → 20M22816+212#9833#9621
20M → 21M16730+137#9621#9484
21M → 35K1114+107#9484#9377
35K → 23M20721+186#9377#9191
23M → 24M15117+134#9191#9057
24M → 40K14134+107#9057#8950
40K → 25.2M5321+32#8950#8918
25.2M → Finish10343+60#8918#8858
TOTALS2839*637+2202

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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